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env-llmeval/lib/python3.10/site-packages/transformers/models/clvp/convert_clvp_to_hf.py

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+# coding=utf-8
+# Copyright 2023 The HuggingFace Team. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""
+Weights conversion script for CLVP
+"""
+
+import argparse
+import os
+
+import torch
+from huggingface_hub import hf_hub_download
+
+from transformers import ClvpConfig, ClvpModelForConditionalGeneration
+
+
+_MODELS = {
+    "clvp": "https://huggingface.co/jbetker/tortoise-tts-v2/blob/main/.models/clvp2.pth",
+    "decoder": "https://huggingface.co/jbetker/tortoise-tts-v2/blob/main/.models/autoregressive.pth",
+}
+
+dim = 1024
+sub_dim = dim // 16
+
+CLVP_ENCODERS_MAPPING = {
+    "text_transformer.transformer.attn_layers": "text_encoder_model",
+    "speech_transformer.transformer.attn_layers": "speech_encoder_model",
+    "text_transformer.transformer.norm": "text_encoder_model.final_layer_norm",
+    "speech_transformer.transformer.norm": "speech_encoder_model.final_layer_norm",
+    "to_text_latent": "text_encoder_model.projection",
+    "to_speech_latent": "speech_encoder_model.projection",
+    "text_emb": "text_encoder_model.token_embedding",
+    "speech_emb": "speech_encoder_model.token_embedding",
+    "1.wrap.net.0": "mlp.fc1",
+    "1.wrap.net.3": "mlp.fc2",
+    "1.wrap": "self_attn",
+    "to_out": "out_proj",
+    "to_q": "q_proj",
+    "to_k": "k_proj",
+    "to_v": "v_proj",
+    "temperature": "logit_scale",
+}
+
+CLVP_DECODER_MAPPING = {
+    "conditioning_encoder.init": "conditioning_encoder.mel_conv",
+    "conditioning_encoder.attn": "conditioning_encoder.mel_attn_blocks",
+    "mel_attn_blocks": "group_norms",
+    ".norm.weight": ".weight",
+    ".norm.bias": ".bias",
+    "text_embedding": "conditioning_encoder.text_token_embedding",
+    "text_pos_embedding.emb": "conditioning_encoder.text_position_embedding",
+    "final_norm": "speech_decoder_model.final_norm",
+    "mel_head": "speech_decoder_model.lm_head",
+    "gpt.ln_f": "speech_decoder_model.model.decoder.layer_norm",
+    "mel_embedding": "speech_decoder_model.model.decoder.input_embeds_layer",
+    "mel_pos_embedding.emb": "speech_decoder_model.model.decoder.position_embeds_layer",
+    "gpt.h": "speech_decoder_model.model.decoder.layers",
+    "ln_1": "input_layernorm",
+    "ln_2": "post_attention_layernorm",
+}
+
+
+def update_index(present_index):
+    if present_index % 2 == 0:
+        return int(present_index / 2)
+    else:
+        return int((present_index - 1) / 2)
+
+
+def convert_encoder_weights(original_weights):
+    converted_weights = {}
+    original_weights_keys = sorted(original_weights.keys())
+    for original_key in original_weights_keys:
+        updated_key = original_key
+        # for input_rmsnorm.weight and post_attention_rmsnorm.weight
+        if "0.0.g" in updated_key:
+            present_index = updated_key.split(".")[4]
+            if int(present_index) % 2 == 0:
+                updated_key = updated_key.replace("0.0.g", "input_rmsnorm.weight")
+            else:
+                updated_key = updated_key.replace("0.0.g", "post_attention_rmsnorm.weight")
+
+        if "transformer.attn_layers.layers" in updated_key:
+            present_index = updated_key.split(".")[4]
+            updated_index = update_index(int(present_index))
+            updated_key = updated_key.replace(
+                f"transformer.attn_layers.layers.{present_index}", f"transformer.attn_layers.layers.{updated_index}"
+            )
+
+        for k, v in CLVP_ENCODERS_MAPPING.items():
+            if k in updated_key:
+                updated_key = updated_key.replace(k, v)
+
+        converted_weights[updated_key] = original_weights.pop(original_key)
+
+    return converted_weights
+
+
+def convert_decoder_weights(original_weights):
+    converted_weights = {}
+    original_weights_keys = sorted(original_weights.keys())
+    for original_key in original_weights_keys:
+        updated_key = original_key
+        if len(updated_key.split(".")) > 3:
+            index, attr = updated_key.split(".")[2], updated_key.split(".")[-1]
+
+        # for decoder attention
+        if "attn.c_attn" in updated_key:
+            if attr == "weight":
+                slice1, slice2, slice3 = original_weights[updated_key].squeeze(-1).T.split(split_size=dim, dim=0)
+            else:
+                slice1, slice2, slice3 = original_weights[updated_key].split(split_size=dim, dim=0)
+            converted_weights[f"speech_decoder_model.model.decoder.layers.{index}.attn.q_proj.{attr}"] = slice1
+            converted_weights[f"speech_decoder_model.model.decoder.layers.{index}.attn.k_proj.{attr}"] = slice2
+            converted_weights[f"speech_decoder_model.model.decoder.layers.{index}.attn.v_proj.{attr}"] = slice3
+            continue
+
+        if "attn.c_proj" in updated_key:
+            converted_weights[f"speech_decoder_model.model.decoder.layers.{index}.attn.out_proj.{attr}"] = (
+                original_weights[updated_key].squeeze(-1).T
+            )
+            continue
+
+        if "attn.bias" in updated_key or "attn.masked_bias" in updated_key or "text_head" in updated_key:
+            original_weights.pop(updated_key)
+            continue
+
+        # conditional encoder attention
+        if "qkv" in updated_key:
+            if attr == "weight":
+                slice1, slice2, slice3 = original_weights[updated_key].squeeze(-1).split(split_size=dim, dim=0)
+            else:
+                slice1, slice2, slice3 = original_weights[updated_key].split(split_size=dim, dim=0)
+
+            indices = torch.arange(dim)
+            index1, index2, index3 = (
+                indices.unfold(0, sub_dim, sub_dim * 3).flatten(),
+                indices[sub_dim:].unfold(0, sub_dim, sub_dim * 3).flatten(),
+                indices[2 * sub_dim :].unfold(0, sub_dim, sub_dim * 3).flatten(),
+            )
+
+            converted_weights[f"conditioning_encoder.mel_attn_blocks.{index}.q_proj.{attr}"] = torch.concatenate(
+                [slice1[index1], slice2[index3], slice3[index2]],
+                axis=0,
+            )
+            converted_weights[f"conditioning_encoder.mel_attn_blocks.{index}.k_proj.{attr}"] = torch.concatenate(
+                [slice1[index2], slice2[index1], slice3[index3]],
+                axis=0,
+            )
+            converted_weights[f"conditioning_encoder.mel_attn_blocks.{index}.v_proj.{attr}"] = torch.concatenate(
+                [slice1[index3], slice2[index2], slice3[index1]],
+                axis=0,
+            )
+            continue
+
+        if "proj_out" in updated_key:
+            converted_weights[f"conditioning_encoder.mel_attn_blocks.{index}.out_proj.{attr}"] = original_weights[
+                updated_key
+            ].squeeze(-1)
+            continue
+
+        for k, v in CLVP_DECODER_MAPPING.items():
+            if k in updated_key:
+                updated_key = updated_key.replace(k, v)
+
+        converted_weights[updated_key] = original_weights.pop(original_key)
+
+    return converted_weights
+
+
+def _download(url: str, root: str):
+    repo_id = f"{url.split('/')[3]}/{url.split('/')[4]}"
+    filename = f"{url.split('/')[-2]}/{url.split('/')[-1]}"
+    hf_hub_download(
+        repo_id=repo_id,
+        filename=filename,
+        force_filename=root,
+        local_dir_use_symlinks=False,
+    )
+
+
+def convert_clvp_weights(checkpoint_path, pytorch_dump_folder_path):
+    converted_checkpoint = {}
+
+    for each_model_name, each_model_url in _MODELS.items():
+        each_model_path = os.path.join(checkpoint_path, each_model_url.split("/")[-1])
+        if not os.path.exists(each_model_path):
+            print(f"\n{each_model_name} was not found! Downloading it to {each_model_path}")
+            _download(url=each_model_url, root=each_model_path)
+
+        if each_model_name == "clvp":
+            clvp_checkpoint = torch.load(each_model_path, map_location="cpu")
+        else:
+            decoder_checkpoint = torch.load(each_model_path, map_location="cpu")
+
+    # Converting the weights
+    converted_checkpoint.update(**convert_encoder_weights(clvp_checkpoint))
+    converted_checkpoint.update(**convert_decoder_weights(decoder_checkpoint))
+
+    config = ClvpConfig.from_pretrained("susnato/clvp_dev")
+    model = ClvpModelForConditionalGeneration(config)
+
+    model.load_state_dict(converted_checkpoint, strict=True)
+    model.save_pretrained(pytorch_dump_folder_path)
+    print(f"Model saved at {pytorch_dump_folder_path}!")
+
+
+if __name__ == "__main__":
+    parser = argparse.ArgumentParser()
+    # # Required parameters
+    parser.add_argument(
+        "--checkpoint_path", type=str, help="Path to the folder of downloaded checkpoints. (Please enter full path)"
+    )
+    parser.add_argument(
+        "--pytorch_dump_folder_path",
+        default=None,
+        type=str,
+        help="Path to the output PyTorch model. (Please enter full path)",
+    )
+    args = parser.parse_args()
+
+    convert_clvp_weights(args.checkpoint_path, args.pytorch_dump_folder_path)

env-llmeval/lib/python3.10/site-packages/transformers/models/clvp/modeling_clvp.py

@@ -0,0 +1,2024 @@
+# coding=utf-8
+# Copyright 2023 The HuggingFace Team. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+""" PyTorch CLVP model."""
+
+
+import copy
+import math
+from dataclasses import dataclass
+from typing import Dict, Optional, Tuple, Union
+
+import torch
+import torch.utils.checkpoint
+from torch import nn
+from torch.nn import CrossEntropyLoss
+
+from ...activations import ACT2FN
+from ...generation import GenerationConfig
+from ...modeling_attn_mask_utils import _prepare_4d_attention_mask, _prepare_4d_causal_attention_mask
+from ...modeling_outputs import (
+    BaseModelOutput,
+    BaseModelOutputWithPastAndCrossAttentions,
+    BaseModelOutputWithPooling,
+    CausalLMOutputWithCrossAttentions,
+)
+from ...modeling_utils import PreTrainedModel, SequenceSummary
+from ...pytorch_utils import Conv1D
+from ...utils import (
+    ModelOutput,
+    add_start_docstrings,
+    add_start_docstrings_to_model_forward,
+    logging,
+    replace_return_docstrings,
+)
+from .configuration_clvp import (
+    ClvpConfig,
+    ClvpDecoderConfig,
+    ClvpEncoderConfig,
+)
+
+
+logger = logging.get_logger(__name__)
+
+_CHECKPOINT_FOR_DOC = "susnato/clvp_dev"
+
+CLVP_PRETRAINED_MODEL_ARCHIVE_LIST = [
+    "susnato/clvp_dev",
+    # See all Clvp models at https://huggingface.co/models?filter=clvp
+]
+
+
+# Copied from transformers.models.clip.modeling_clip.contrastive_loss
+def contrastive_loss(logits: torch.Tensor) -> torch.Tensor:
+    return nn.functional.cross_entropy(logits, torch.arange(len(logits), device=logits.device))
+
+
+# Copied from transformers.models.clip.modeling_clip.clip_loss with clip->clvp, image_loss->speech_loss
+def clvp_loss(similarity: torch.Tensor) -> torch.Tensor:
+    caption_loss = contrastive_loss(similarity)
+    speech_loss = contrastive_loss(similarity.t())
+    return (caption_loss + speech_loss) / 2.0
+
+
+# Copied from transformers.models.llama.modeling_llama.rotate_half
+def rotate_half(x):
+    """Rotates half the hidden dims of the input."""
+    x1 = x[..., : x.shape[-1] // 2]
+    x2 = x[..., x.shape[-1] // 2 :]
+    return torch.cat((-x2, x1), dim=-1)
+
+
+def apply_rotary_pos_emb(q, k, v, cos, sin, position_ids, unsqueeze_dim=1):
+    """Applies Rotary Position Embedding to the query and key tensors.
+
+    Args:
+        q (`torch.Tensor`): The query tensor.
+        k (`torch.Tensor`): The key tensor.
+        cos (`torch.Tensor`): The cosine part of the rotary embedding.
+        sin (`torch.Tensor`): The sine part of the rotary embedding.
+        position_ids (`torch.Tensor`):
+            The position indices of the tokens corresponding to the query and key tensors. For example, this can be
+            used to pass offsetted position ids when working with a KV-cache.
+        unsqueeze_dim (`int`, *optional*, defaults to 1):
+            The 'unsqueeze_dim' argument specifies the dimension along which to unsqueeze cos[position_ids] and
+            sin[position_ids] so that they can be properly broadcasted to the dimensions of q and k. For example, note
+            that cos[position_ids] and sin[position_ids] have the shape [batch_size, seq_len, head_dim]. Then, if q and
+            k have the shape [batch_size, heads, seq_len, head_dim], then setting unsqueeze_dim=1 makes
+            cos[position_ids] and sin[position_ids] broadcastable to the shapes of q and k. Similarly, if q and k have
+            the shape [batch_size, seq_len, heads, head_dim], then set unsqueeze_dim=2.
+    Returns:
+        `tuple(torch.Tensor)` comprising of the query and key tensors rotated using the Rotary Position Embedding.
+    """
+    cos = cos[position_ids].unsqueeze(unsqueeze_dim)
+    sin = sin[position_ids].unsqueeze(unsqueeze_dim)
+    q_embed = (q * cos) + (rotate_half(q) * sin)
+    k_embed = (k * cos) + (rotate_half(k) * sin)
+    v_embed = (v * cos) + (rotate_half(v) * sin)
+    return q_embed, k_embed, v_embed
+
+
+def _pad_extra_bos_eos_tokens(
+    input_ids,
+    attention_mask=None,
+    pad_token_id=0,
+    bos_token_id=255,
+    eos_token_id=0,
+    add_bos_token=True,
+    add_eos_token=True,
+):
+    """
+    This method adds extra bos and eos tokens to input_ids and accordingly modifies the attention_mask which is used in
+    `ClvpConditioningEncoder` and the generation loop of the `ClvpModelForConditionalGeneration`.
+    """
+
+    # add the bos token at the beginning
+    if add_bos_token:
+        input_ids = torch.nn.functional.pad(input_ids, (1, 0), value=bos_token_id)
+        attention_mask = (
+            torch.nn.functional.pad(attention_mask, (1, 0), value=1) if attention_mask is not None else attention_mask
+        )
+
+    modified_input_ids = input_ids
+    if add_eos_token:
+        modified_input_ids = torch.zeros(
+            (input_ids.shape[0], input_ids.shape[1] + 1), dtype=input_ids.dtype, device=input_ids.device
+        )
+        for i, each_input_id in enumerate(input_ids):
+            # locate where the valid tokens end and then add the eos token
+            if torch.isin(each_input_id, pad_token_id).sum():
+                pos = torch.where(each_input_id == pad_token_id)[0].min()
+                modified_input_ids[i] = torch.concatenate(
+                    [each_input_id[:pos], torch.tensor([eos_token_id], device=input_ids.device), each_input_id[pos:]]
+                )
+            else:
+                # if there are no pad tokens present, then add eos to the end
+                modified_input_ids[i] = torch.nn.functional.pad(each_input_id, (0, 1), value=eos_token_id)
+        attention_mask = (
+            torch.nn.functional.pad(attention_mask, (1, 0), value=1) if attention_mask is not None else attention_mask
+        )
+
+    return modified_input_ids, attention_mask
+
+
+@dataclass
+class ClvpEncoderOutput(ModelOutput):
+    """
+    Base class for CLVP encoder's outputs that contains a pooling of the last hidden states as well as a projection
+    output (a linear layer on top of the pooled output).
+
+    Args:
+        embeds (`torch.FloatTensor` of shape `(batch_size, output_dim)`, *optional*, returned when model is initialized with `with_projection=True`):
+            The embeddings obtained by applying the projection layer to the pooler_output.
+        last_hidden_state (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`):
+            The hidden state of the last layer of the model.
+        pooler_output (`torch.FloatTensor` of shape `(batch_size, hidden_size)`):
+            Pooled output of the `last_hidden_state`.
+        hidden_states (`tuple(torch.FloatTensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
+            Tuple of `torch.FloatTensor` (one for the output of the embeddings, if the model has an embedding layer, +
+            one for the output of each layer) of shape `(batch_size, sequence_length, hidden_size)`. Hidden-states of
+            the model at the output of each layer plus the optional initial embedding outputs.
+        attentions (`tuple(torch.FloatTensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
+            Tuple of `torch.FloatTensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
+            sequence_length)`. Attentions weights after the attention softmax, used to compute the weighted average in
+            the self-attention heads.
+    """
+
+    embeds: Optional[torch.FloatTensor] = None
+    last_hidden_state: torch.FloatTensor = None
+    pooler_output: Optional[torch.FloatTensor] = None
+    hidden_states: Optional[Tuple[torch.FloatTensor]] = None
+    attentions: Optional[Tuple[torch.FloatTensor]] = None
+
+
+@dataclass
+class ClvpOutput(ModelOutput):
+    """
+    Args:
+        loss (`torch.FloatTensor` of shape `(1,)`, *optional*, returned when `return_loss` is `True`):
+            Contrastive loss for speech-text similarity.
+        speech_ids (`torch.LongTensor`, *optional*):
+            speech_ids (or speech candidates) generated by the `ClvpForCausalLM` model.
+        logits_per_speech (`torch.FloatTensor` of shape `(speech_batch_size, text_batch_size)`):
+            The scaled dot product scores between `speech_embeds` and `text_embeds`. This represents the speech-text
+            similarity scores.
+        logits_per_text (`torch.FloatTensor` of shape `(text_batch_size, speech_batch_size)`):
+            The scaled dot product scores between `text_embeds` and `speech_embeds`. This represents the text-speech
+            similarity scores.
+        text_embeds (`torch.FloatTensor` of shape `(batch_size, output_dim`):
+            The text embeddings obtained by applying the projection layer to the pooled output of the text encoder
+            model.
+        speech_embeds (`torch.FloatTensor` of shape `(batch_size, output_dim`):
+            The speech embeddings obtained by applying the projection layer to the pooled output of the speech encoder
+            model.
+        text_model_output (`BaseModelOutputWithPooling`):
+            The pooled output of the `last_hidden_state` of the text encoder Model.
+        speech_model_output (`BaseModelOutputWithPooling`):
+            The pooled output of the `last_hidden_state` of the speech encoder Model.
+        decoder_hidden_states (`torch.FloatTensor`, *optional*):
+            The hidden states of the decoder model.
+        text_encoder_hidden_states (`torch.FloatTensor`, *optional*):
+            The hidden states of the text encoder model.
+        speech_encoder_hidden_states (`torch.FloatTensor`, *optional*):
+            The hidden states of the speech encoder model.
+    """
+
+    loss: Optional[torch.FloatTensor] = None
+    speech_ids: Optional[torch.LongTensor] = None
+    logits_per_speech: torch.FloatTensor = None
+    logits_per_text: torch.FloatTensor = None
+    text_embeds: torch.FloatTensor = None
+    speech_embeds: torch.FloatTensor = None
+    text_model_output: BaseModelOutputWithPooling = None
+    speech_model_output: BaseModelOutputWithPooling = None
+    decoder_hidden_states: torch.FloatTensor = None
+    text_encoder_hidden_states: torch.FloatTensor = None
+    speech_encoder_hidden_states: torch.FloatTensor = None
+
+
+# Copied from transformers.models.llama.modeling_llama.LlamaRMSNorm with Llama->Clvp
+class ClvpRMSNorm(nn.Module):
+    def __init__(self, hidden_size, eps=1e-6):
+        """
+        ClvpRMSNorm is equivalent to T5LayerNorm
+        """
+        super().__init__()
+        self.weight = nn.Parameter(torch.ones(hidden_size))
+        self.variance_epsilon = eps
+
+    def forward(self, hidden_states):
+        input_dtype = hidden_states.dtype
+        hidden_states = hidden_states.to(torch.float32)
+        variance = hidden_states.pow(2).mean(-1, keepdim=True)
+        hidden_states = hidden_states * torch.rsqrt(variance + self.variance_epsilon)
+        return self.weight * hidden_states.to(input_dtype)
+
+
+class ClvpRotaryPositionalEmbedding(nn.Module):
+    """
+    Rotary Position Embedding Class for CLVP. It was proposed in the paper 'ROFORMER: ENHANCED TRANSFORMER WITH ROTARY
+    POSITION EMBEDDING', Please see https://arxiv.org/pdf/2104.09864v1.pdf .
+    """
+
+    def __init__(self, config):
+        super().__init__()
+        dim = max(config.projection_dim // (config.num_attention_heads * 2), 32)
+        inv_freq = 1.0 / (10000 ** (torch.arange(0, dim, 2, dtype=torch.int64).float() / dim))
+
+        self.register_buffer("inv_freq", inv_freq)
+        self.cached_sequence_length = None
+        self.cached_rotary_positional_embedding = None
+
+    def forward(self, hidden_states: torch.FloatTensor) -> torch.FloatTensor:
+        sequence_length = hidden_states.shape[1]
+
+        if sequence_length == self.cached_sequence_length and self.cached_rotary_positional_embedding is not None:
+            return self.cached_rotary_positional_embedding
+
+        self.cached_sequence_length = sequence_length
+        time_stamps = torch.arange(sequence_length, device=hidden_states.device).type_as(self.inv_freq)
+        freqs = torch.einsum("i,j->ij", time_stamps, self.inv_freq)
+        embeddings = torch.cat((freqs, freqs), dim=-1)
+
+        self.cached_rotary_positional_embedding = embeddings.unsqueeze(0)
+        return self.cached_rotary_positional_embedding
+
+
+class ClvpSelfAttention(nn.Module):
+    """
+    Multi-headed attention to combine Absolute and Rotary Positional Embeddings into a single Attention module.
+    """
+
+    def __init__(self, config):
+        super().__init__()
+        self.config = config
+        self.embed_dim = config.hidden_size
+        self.num_heads = config.num_attention_heads
+        self.head_dim = self.embed_dim // self.num_heads
+        if self.head_dim * self.num_heads != self.embed_dim:
+            raise ValueError(
+                f"embed_dim must be divisible by num_heads (got `embed_dim`: {self.embed_dim} and `num_heads`:"
+                f" {self.num_heads})."
+            )
+        self.scale = self.head_dim**-0.5
+        self.dropout = config.attention_dropout
+
+        if hasattr(config, "max_position_embeddings"):
+            max_positions = config.max_position_embeddings
+            bias = torch.tril(torch.ones((max_positions, max_positions), dtype=torch.bool))
+            bias = bias.view(1, 1, max_positions, max_positions)
+            self.register_buffer("bias", bias, persistent=False)
+
+        self.k_proj = nn.Linear(self.embed_dim, self.embed_dim, bias=config.use_attention_bias)
+        self.v_proj = nn.Linear(self.embed_dim, self.embed_dim, bias=config.use_attention_bias)
+        self.q_proj = nn.Linear(self.embed_dim, self.embed_dim, bias=config.use_attention_bias)
+        self.out_proj = nn.Linear(self.embed_dim, self.embed_dim)
+
+    # Copied from transformers.models.clip.modeling_clip.CLIPAttention._shape
+    def _shape(self, tensor: torch.Tensor, seq_len: int, bsz: int):
+        return tensor.view(bsz, seq_len, self.num_heads, self.head_dim).transpose(1, 2).contiguous()
+
+    def forward(
+        self,
+        hidden_states: torch.FloatTensor,
+        rotary_pos_emb: Optional[torch.FloatTensor] = None,
+        attention_mask: Optional[torch.LongTensor] = None,
+        position_ids: Optional[torch.LongTensor] = None,
+        past_key_value: Optional[Tuple[torch.Tensor]] = None,
+        use_cache: Optional[bool] = False,
+        head_mask: Optional[torch.FloatTensor] = None,
+        output_attentions: Optional[bool] = False,
+    ) -> Tuple[torch.FloatTensor, Optional[torch.FloatTensor], Optional[Tuple[torch.FloatTensor]]]:
+        # Raise error when position_ids is None but rotary_pos_emb is provided, because we need that when applying
+        # rotary_pos_emb to query and key states.
+        if rotary_pos_emb is not None and position_ids is None:
+            raise ValueError("`position_ids` must be provided when `rotary_pos_emb` is not None.")
+
+        bsz, _, embed_dim = hidden_states.size()
+
+        # get query proj
+        query_states = self._shape(self.q_proj(hidden_states), -1, bsz) * self.scale
+        key_states = self._shape(self.k_proj(hidden_states), -1, bsz)
+        value_states = self._shape(self.v_proj(hidden_states), -1, bsz)
+
+        if past_key_value is not None:
+            past_key, past_value = past_key_value
+            key_states = torch.cat((past_key, key_states), dim=-2)
+            value_states = torch.cat((past_value, value_states), dim=-2)
+
+        if use_cache is True:
+            present = (key_states, value_states)
+        else:
+            present = None
+
+        if rotary_pos_emb is not None:
+            rotary_emb_dim = rotary_pos_emb.shape[-1]
+
+            # Partial rotary embedding
+            query_rot, query_pass = (
+                query_states[..., :rotary_emb_dim],
+                query_states[..., rotary_emb_dim:],
+            )
+            key_rot, key_pass = (
+                key_states[..., :rotary_emb_dim],
+                key_states[..., rotary_emb_dim:],
+            )
+            value_rot, value_pass = (
+                value_states[..., :rotary_emb_dim],
+                value_states[..., rotary_emb_dim:],
+            )
+
+            cos, sin = rotary_pos_emb.cos().squeeze(0), rotary_pos_emb.sin().squeeze(0)
+            query_rot, key_rot, value_rot = apply_rotary_pos_emb(query_rot, key_rot, value_rot, cos, sin, position_ids)
+
+            # [batch_size, num_heads, seq_length, head_dim]
+            query_states = torch.cat((query_rot, query_pass), dim=-1)
+            key_states = torch.cat((key_rot, key_pass), dim=-1)
+            value_states = torch.cat((value_rot, value_pass), dim=-1)
+
+        tgt_len = query_states.shape[2]
+        src_len = key_states.shape[2]
+        attn_weights = torch.matmul(query_states, key_states.transpose(2, 3))
+
+        if attention_mask is not None:
+            if attention_mask.size() != (bsz, 1, tgt_len, src_len):
+                raise ValueError(
+                    f"Attention mask should be of size {(bsz, 1, tgt_len, src_len)}, but is {attention_mask.size()}"
+                )
+            attn_weights = attn_weights + attention_mask
+
+        attn_weights = nn.functional.softmax(attn_weights, dim=-1)
+
+        # Mask heads if we want to
+        if head_mask is not None:
+            attn_weights = attn_weights * head_mask
+
+        attn_probs = nn.functional.dropout(attn_weights, p=self.dropout, training=self.training)
+        attn_output = torch.matmul(attn_probs, value_states)
+
+        if attn_output.size() != (bsz, self.num_heads, tgt_len, self.head_dim):
+            raise ValueError(
+                f"`attn_output` should be of size {(bsz, self.num_heads, tgt_len, self.head_dim)}, but is"
+                f" {attn_output.size()}"
+            )
+
+        attn_output = attn_output.transpose(1, 2).contiguous()
+        attn_output = attn_output.reshape(bsz, tgt_len, self.embed_dim)
+
+        attn_output = self.out_proj(attn_output)
+
+        if not output_attentions:
+            attn_weights = None
+
+        return attn_output, present, attn_weights
+
+
+class ClvpGatedLinearUnit(nn.Module):
+    """
+    `ClvpGatedLinearUnit` uses the second half of the `hidden_states` to act as a gate for the first half of the
+    `hidden_states` which controls the flow of data from the first of the tensor.
+    """
+
+    def __init__(self, config):
+        super().__init__()
+        self.activation_fn = ACT2FN[config.hidden_act]
+        self.proj = nn.Linear(config.hidden_size, config.intermediate_size * 2)
+
+    def forward(self, hidden_states: torch.FloatTensor) -> torch.FloatTensor:
+        hidden_states, gate = self.proj(hidden_states).chunk(2, dim=-1)
+        return hidden_states * self.activation_fn(gate)
+
+
+class ClvpEncoderMLP(nn.Module):
+    """
+    This MLP is used in CLVP speech or text encoder models.
+    """
+
+    def __init__(self, config):
+        super().__init__()
+        self.config = config
+
+        self.fc1 = ClvpGatedLinearUnit(config)
+        self.fc2 = nn.Linear(config.intermediate_size, config.hidden_size)
+        self.dropout_layer = nn.Dropout(config.dropout)
+
+    def forward(self, hidden_states: torch.FloatTensor) -> torch.FloatTensor:
+        hidden_states = self.fc1(hidden_states)
+        hidden_states = self.dropout_layer(hidden_states)
+        hidden_states = self.fc2(hidden_states)
+        return hidden_states
+
+
+class ClvpEncoderLayer(nn.Module):
+    def __init__(self, config: ClvpConfig):
+        super().__init__()
+        self.config = config
+        self.embed_dim = config.hidden_size
+        self.self_attn = ClvpSelfAttention(config)
+        self.mlp = ClvpEncoderMLP(config)
+
+        self.input_rmsnorm = ClvpRMSNorm(self.embed_dim, eps=config.layer_norm_eps)
+        self.post_attention_rmsnorm = ClvpRMSNorm(self.embed_dim, eps=config.layer_norm_eps)
+
+    def forward(
+        self,
+        hidden_states: torch.FloatTensor,
+        rotary_pos_emb: torch.FloatTensor,
+        attention_mask: torch.LongTensor,
+        position_ids: torch.LongTensor,
+        output_attentions: Optional[bool] = False,
+    ) -> Tuple[torch.FloatTensor]:
+        """
+        Args:
+            hidden_states (`torch.FloatTensor` of shape `(batch, seq_len, embed_dim)`):
+                input to the layer.
+            rotary_pos_emb (`torch.FloatTensor`):
+                rotary position embeddings generated by `ClvpRotaryPositionalEmbedding` module.
+            attention_mask (`torch.FloatTensor` of shape `(batch, 1, tgt_len, src_len)`):
+                attention mask where padding elements are indicated by very large negative values.
+            position_ids (`torch.LongTensor`):
+                Denotes position ids of the input tokens.
+            output_attentions (`bool`, *optional*, defaults to `False`):
+                Whether or not to return the attentions tensors of all attention layers. See `attentions` under
+                returned tensors for more detail.
+        """
+        residual = hidden_states
+
+        hidden_states = self.input_rmsnorm(hidden_states)
+
+        attention_outputs = self.self_attn(
+            hidden_states=hidden_states,
+            rotary_pos_emb=rotary_pos_emb,
+            attention_mask=attention_mask,
+            position_ids=position_ids,
+            output_attentions=output_attentions,
+        )
+
+        hidden_states = attention_outputs[0]
+
+        hidden_states = residual + hidden_states
+
+        residual = hidden_states
+        hidden_states = self.post_attention_rmsnorm(hidden_states)
+        hidden_states = self.mlp(hidden_states)
+        hidden_states = residual + hidden_states
+
+        outputs = (hidden_states,)
+
+        if output_attentions:
+            outputs += (attention_outputs[-1],)
+
+        return outputs
+
+
+# Copied from transformers.models.gpt2.modeling_gpt2.GPT2MLP with GPT2->ClvpDecoderMLP
+class ClvpDecoderMLP(nn.Module):
+    def __init__(self, intermediate_size, config):
+        super().__init__()
+        embed_dim = config.hidden_size
+        self.c_fc = Conv1D(intermediate_size, embed_dim)
+        self.c_proj = Conv1D(embed_dim, intermediate_size)
+        self.act = ACT2FN[config.activation_function]
+        self.dropout = nn.Dropout(config.resid_pdrop)
+
+    def forward(self, hidden_states: Optional[Tuple[torch.FloatTensor]]) -> torch.FloatTensor:
+        hidden_states = self.c_fc(hidden_states)
+        hidden_states = self.act(hidden_states)
+        hidden_states = self.c_proj(hidden_states)
+        hidden_states = self.dropout(hidden_states)
+        return hidden_states
+
+
+class ClvpDecoderLayer(nn.Module):
+    def __init__(self, config):
+        super().__init__()
+        hidden_size = config.hidden_size
+        inner_dim = config.n_inner if config.n_inner is not None else 4 * hidden_size
+
+        self.input_layernorm = nn.LayerNorm(hidden_size, eps=config.layer_norm_epsilon)
+        self.attn = ClvpSelfAttention(config)
+        self.post_attention_layernorm = nn.LayerNorm(hidden_size, eps=config.layer_norm_epsilon)
+
+        self.mlp = ClvpDecoderMLP(inner_dim, config)
+
+    def forward(
+        self,
+        hidden_states: Optional[Tuple[torch.FloatTensor]],
+        past_key_value: Optional[Tuple[torch.Tensor]] = None,
+        attention_mask: Optional[torch.LongTensor] = None,
+        position_ids: Optional[torch.LongTensor] = None,
+        head_mask: Optional[torch.FloatTensor] = None,
+        use_cache: Optional[bool] = False,
+        output_attentions: Optional[bool] = False,
+    ) -> Union[Tuple[torch.Tensor], Optional[Tuple[torch.Tensor, Tuple[torch.FloatTensor, ...]]]]:
+        residual = hidden_states
+        hidden_states = self.input_layernorm(hidden_states)
+        attn_outputs = self.attn(
+            hidden_states,
+            past_key_value=past_key_value,
+            attention_mask=attention_mask,
+            position_ids=position_ids,
+            head_mask=head_mask,
+            use_cache=use_cache,
+            output_attentions=output_attentions,
+        )
+        attn_output = attn_outputs[0]
+        outputs = attn_outputs[1:]
+        # residual connection
+        hidden_states = attn_output + residual
+
+        residual = hidden_states
+        hidden_states = self.post_attention_layernorm(hidden_states)
+        feed_forward_hidden_states = self.mlp(hidden_states)
+        # residual connection
+        hidden_states = residual + feed_forward_hidden_states
+
+        if use_cache:
+            outputs = (hidden_states,) + outputs
+        else:
+            outputs = (hidden_states,) + outputs[1:]
+
+        return outputs
+
+
+class ClvpConditioningEncoder(nn.Module):
+    """
+    This class processes the log-mel spectrograms(extracted by the Feature Extractor) and text tokens(produced by the
+    tokenizer) as inputs for the decoder model.
+
+    First each log-mel spectrogram is processed into a single vector which captures valuable characteristics from each
+    of them, then the text tokens are converted into token embeddings and position embeddings are added afterwards.
+    Both of these vectors are concatenated and then passed to the decoder model.
+
+    The text tokens helps to incorporate the "text information" and the log-mel spectrogram is used to specify the
+    "voice characteristics" into the generated mel tokens.
+    """
+
+    def __init__(self, config: ClvpConfig):
+        super().__init__()
+
+        self.text_config = config.text_config
+        self.decoder_config = config.decoder_config
+
+        self.text_token_embedding = nn.Embedding(self.text_config.vocab_size, self.decoder_config.hidden_size)
+        self.text_position_embedding = nn.Embedding(
+            self.decoder_config.max_text_tokens, self.decoder_config.hidden_size
+        )
+
+        self.mel_conv = nn.Conv1d(self.decoder_config.feature_size, self.decoder_config.hidden_size, kernel_size=1)
+
+        # define group norms to be used before each attention layer
+        num_groups = self.compute_groupnorm_groups(self.decoder_config.hidden_size)
+        self.group_norms = nn.ModuleList(
+            [
+                nn.GroupNorm(num_groups, self.decoder_config.hidden_size, eps=1e-5, affine=True)
+                for _ in range(self.decoder_config.num_mel_attn_blocks)
+            ]
+        )
+
+        # define the attention layers
+        self.mel_attn_blocks = nn.ModuleList(
+            [ClvpSelfAttention(self.decoder_config) for _ in range(self.decoder_config.num_mel_attn_blocks)]
+        )
+
+        self.gradient_checkpointing = False
+
+    def compute_groupnorm_groups(self, channels: int, groups: int = 32):
+        """
+        Calculates the value of `num_groups` for nn.GroupNorm. This logic is taken from the official tortoise
+        repository. link :
+        https://github.com/neonbjb/tortoise-tts/blob/4003544b6ff4b68c09856e04d3eff9da26d023c2/tortoise/models/arch_util.py#L26
+        """
+        if channels <= 16:
+            groups = 8
+        elif channels <= 64:
+            groups = 16
+        while channels % groups != 0:
+            groups = int(groups / 2)
+
+        if groups <= 2:
+            raise ValueError(
+                f"Number of groups for the GroupNorm must be greater than 2, but it is {groups}."
+                f"Please consider using a different `hidden_size`"
+            )
+
+        return groups
+
+    def forward(
+        self,
+        input_features: torch.FloatTensor,
+        input_ids: Optional[torch.LongTensor] = None,
+        inputs_embeds: Optional[torch.FloatTensor] = None,
+        attention_mask: Optional[torch.LongTensor] = None,
+    ):
+        # process text
+        if input_ids is not None and inputs_embeds is not None:
+            raise ValueError("You cannot specify both input_ids and inputs_embeds at the same time")
+        elif input_ids is not None:
+            batch_size, seq_length = input_ids.size()
+        elif inputs_embeds is not None:
+            batch_size, seq_length = inputs_embeds.size()[:-1]
+        else:
+            raise ValueError("You have to specify either input_ids or inputs_embeds")
+
+        # construct attention mask if not given
+        if attention_mask is None:
+            attention_mask = torch.ones([batch_size, seq_length], dtype=torch.long, device=input_ids.device)
+
+        # We add bos and eos input_ids in the modeling file instead of the tokenizer file to keep the logic simple
+        # This logic is specific to ClvpConditioningEncoder and not used by other modules.
+        input_ids, attention_mask = _pad_extra_bos_eos_tokens(
+            input_ids,
+            attention_mask,
+            bos_token_id=self.text_config.bos_token_id,
+            eos_token_id=self.text_config.eos_token_id,
+        )
+
+        inputs_embeds = self.text_token_embedding(input_ids)
+        position_ids = attention_mask.cumsum(-1) - 1
+        position_embeds = self.text_position_embedding(position_ids)
+        text_embeds = inputs_embeds + position_embeds
+
+        if self.gradient_checkpointing and self.training:
+            # process each log-mel spectrogram into a single vector
+            mel_spec = torch.utils.checkpoint.checkpoint(self.mel_conv, input_features)
+
+            for i, mel_attn_block in enumerate(self.mel_attn_blocks):
+                residual_mel_spec = mel_spec.transpose(1, 2)
+
+                mel_spec = torch.utils.checkpoint.checkpoint(self.group_norms[i], mel_spec).transpose(1, 2)
+                mel_spec = torch.utils.checkpoint.checkpoint(mel_attn_block, mel_spec)[0] + residual_mel_spec
+                mel_spec = mel_spec.transpose(1, 2)
+
+        else:
+            # process each log-mel spectrogram into a single vector
+            mel_spec = self.mel_conv(input_features)
+
+            for i, mel_attn_block in enumerate(self.mel_attn_blocks):
+                residual_mel_spec = mel_spec.transpose(1, 2)
+
+                mel_spec = self.group_norms[i](mel_spec).transpose(1, 2)
+                mel_spec = mel_attn_block(mel_spec)[0] + residual_mel_spec
+                mel_spec = mel_spec.transpose(1, 2)
+
+        mel_spec = mel_spec[:, :, 0]
+        mel_spec = mel_spec.unsqueeze(1)
+
+        # repeat if there is either (1 text vs N audios) or (N texts vs 1 audio)
+        if text_embeds.shape[0] == 1 and mel_spec.shape[0] != 1:
+            text_embeds = text_embeds.repeat(mel_spec.shape[0], 1, 1)
+        elif text_embeds.shape[0] != 1 and mel_spec.shape[0] == 1:
+            mel_spec = mel_spec.repeat(text_embeds.shape[0], 1, 1)
+        # If there is N texts and M audios we will raise error since the number of text and audio must be same.
+        elif text_embeds.shape[0] != mel_spec.shape[0]:
+            raise ValueError(
+                f"The number of texts and number of audios must be same. "
+                f"Found {text_embeds.shape[0]} texts vs {mel_spec.shape[0]} audios"
+            )
+
+        return torch.concat([mel_spec, text_embeds], dim=1)
+
+
+class ClvpPreTrainedModel(PreTrainedModel):
+    """
+    An abstract class to handle weights initialization and a simple interface for downloading and loading pretrained
+    models.
+    """
+
+    config_class = ClvpConfig
+    base_model_prefix = "clvp"
+    supports_gradient_checkpointing = True
+    _skip_keys_device_placement = "past_key_values"
+
+    def _init_weights(self, module):
+        """Initialize the weights"""
+        factor = self.config.initializer_factor
+        if isinstance(module, nn.Embedding):
+            module.weight.data.normal_(mean=0.0, std=factor * 0.02)
+        elif isinstance(module, (nn.Linear, Conv1D, nn.Conv1d)):
+            module.weight.data.normal_(mean=0.0, std=factor * 0.02)
+            if module.bias is not None:
+                module.bias.data.zero_()
+        elif isinstance(module, ClvpEncoderMLP):
+            factor = self.config.initializer_factor
+            in_proj_std = (module.config.hidden_size**-0.5) * ((2 * module.config.num_hidden_layers) ** -0.5) * factor
+            fc_std = (2 * module.config.hidden_size) ** -0.5 * factor
+            nn.init.normal_(module.fc1.proj.weight if getattr(module.fc1, "proj") else module.fc1.weight, std=fc_std)
+            nn.init.normal_(module.fc2.weight, std=in_proj_std)
+        elif isinstance(module, ClvpEncoder):
+            config = self.config.text_config if hasattr(self.config, "text_config") else self.config
+            factor = config.initializer_factor
+            module.projection.weight.data.normal_(mean=0.0, std=factor * (config.hidden_size**-0.5))
+        elif isinstance(module, ClvpConditioningEncoder):
+            module.mel_conv.weight.data.normal_(mean=0.0, std=factor)
+            module.mel_conv.bias.data.zero_()
+        elif isinstance(module, ClvpForCausalLM):
+            for name, p in module.named_parameters():
+                if name == "c_proj.weight":
+                    p.data.normal_(
+                        mean=0.0, std=(self.config.initializer_range / math.sqrt(2 * self.config.num_hidden_layers))
+                    )
+        if isinstance(module, nn.LayerNorm):
+            module.bias.data.zero_()
+            module.weight.data.fill_(1.0)
+
+
+CLVP_START_DOCSTRING = r"""
+    This model inherits from [`PreTrainedModel`]. Check the superclass documentation for the generic methods the
+    library implements for all its model (such as downloading or saving, resizing the input embeddings, pruning heads
+    etc.)
+
+    This model is also a PyTorch [torch.nn.Module](https://pytorch.org/docs/stable/nn.html#torch.nn.Module) subclass.
+    Use it as a regular PyTorch Module and refer to the PyTorch documentation for all matter related to general usage
+    and behavior.
+
+    Parameters:
+        config ([`ClvpConfig`]): Model configuration class with all the parameters of the model.
+            Initializing with a config file does not load the weights associated with the model, only the
+            configuration. Check out the [`~PreTrainedModel.from_pretrained`] method to load the model weights.
+"""
+
+
+CLVP_INPUTS_DOCSTRING = r"""
+    Args:
+        input_ids (`torch.LongTensor` of shape `(batch_size, sequence_length)`, *optional*):
+            Indices of input sequence tokens in the vocabulary. Padding will be ignored by default should you provide
+            it.
+
+            Indices can be obtained using [`AutoTokenizer`]. See [`PreTrainedTokenizer.encode`] and
+            [`PreTrainedTokenizer.__call__`] for details.
+
+            [What are input IDs?](../glossary#input-ids)
+        input_features (`torch.FloatTensor` of shape `(batch_size, feature_size, time_dim)`):
+            Indicates log mel-spectrogram representations for audio returned by [`ClvpFeatureExtractor`].
+        conditioning_encoder_inputs_embeds (`torch.FloatTensor`, *optional*):
+            inputs_embeds for `ClvpConditioningEncoder`. Can be used in place of `input_ids`.
+        text_encoder_inputs_embeds (`torch.FloatTensor`, *optional*):
+            inputs_embeds for the text encoder model passed in place of `input_ids`.
+        attention_mask (`torch.Tensor` of shape `(batch_size, sequence_length)`, *optional*):
+            Mask to avoid performing attention on padding text token indices. Mask values selected in `[0, 1]`:
+
+            - 1 for tokens that are **not masked**,
+            - 0 for tokens that are **masked**.
+
+            [What are attention masks?](../glossary#attention-mask)
+        return_loss (`bool`, *optional*):
+            Whether or not to return the contrastive loss.
+        output_attentions (`bool`, *optional*):
+            Whether or not to return the attentions tensors of all attention layers. See `attentions` under returned
+            tensors for more detail.
+        output_hidden_states (`bool`, *optional*):
+            Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors for
+            more detail.
+        return_dict (`bool`, *optional*):
+            Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple.
+"""
+
+
+CLVP_DECODER_INPUTS_DOCSTRING = r"""
+    Args:
+        input_ids (`torch.LongTensor` of shape `(batch_size, input_ids_length)`):
+            Indices of input sequence tokens in the vocabulary.
+
+            Indices can be obtained using [`AutoTokenizer`]. See [`PreTrainedTokenizer.encode`] and
+            [`PreTrainedTokenizer.__call__`] for details.
+
+            [What are input IDs?](../glossary#input-ids)
+        past_key_values (`Tuple[Tuple[torch.Tensor]]` of length `config.n_layers`):
+            Contains precomputed hidden-states (key and values in the attention blocks) as computed by the model (see
+            `past_key_values` output below). Can be used to speed up sequential decoding. The `input_ids` which have
+            their past given to this model should not be passed as `input_ids` as they have already been computed.
+        attention_mask (`torch.FloatTensor` of shape `(batch_size, sequence_length)`, *optional*):
+            Mask to avoid performing attention on padding token indices. Mask values selected in `[0, 1]`:
+
+            - 1 for tokens that are **not masked**,
+            - 0 for tokens that are **masked**.
+
+            If `past_key_values` is used, `attention_mask` needs to contain the masking strategy that was used for
+            `past_key_values`. In other words, the `attention_mask` always has to have the length:
+            `len(past_key_values) + len(input_ids)`
+
+            [What are attention masks?](../glossary#attention-mask)
+        token_type_ids (`torch.LongTensor` of shape `(batch_size, input_ids_length)`, *optional*):
+            Segment token indices to indicate first and second portions of the inputs. Indices are selected in `[0,
+            1]`:
+
+            - 0 corresponds to a *sentence A* token,
+            - 1 corresponds to a *sentence B* token.
+
+            [What are token type IDs?](../glossary#token-type-ids)
+        position_ids (`torch.LongTensor` of shape `(batch_size, sequence_length)`, *optional*):
+            Indices of positions of each input sequence tokens in the position embeddings. Selected in the range `[0,
+            config.max_position_embeddings - 1]`.
+
+            [What are position IDs?](../glossary#position-ids)
+        head_mask (`torch.FloatTensor` of shape `(num_heads,)` or `(num_layers, num_heads)`, *optional*):
+            Mask to nullify selected heads of the self-attention modules. Mask values selected in `[0, 1]`:
+
+            - 1 indicates the head is **not masked**,
+            - 0 indicates the head is **masked**.
+
+        inputs_embeds (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`, *optional*):
+            Optionally, instead of passing `input_ids` you can choose to directly pass an embedded representation. This
+            is useful if you want more control over how to convert `input_ids` indices into associated vectors than the
+            model's internal embedding lookup matrix.
+
+            If `past_key_values` is used, optionally only the last `inputs_embeds` have to be input (see
+            `past_key_values`).
+        use_cache (`bool`, *optional*):
+            If set to `True`, `past_key_values` key value states are returned and can be used to speed up decoding (see
+            `past_key_values`).
+        output_attentions (`bool`, *optional*):
+            Whether or not to return the attentions tensors of all attention layers. See `attentions` under returned
+            tensors for more detail.
+        output_hidden_states (`bool`, *optional*):
+            Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors for
+            more detail.
+        return_dict (`bool`, *optional*):
+            Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple.
+"""
+
+
+class ClvpEncoder(ClvpPreTrainedModel):
+    """
+    Transformer encoder consisting of `config.num_hidden_layers` self attention layers. Each layer is a
+    [`ClvpEncoderLayer`].
+
+    Args:
+        config: ClvpConfig
+    """
+
+    def __init__(self, config: ClvpConfig):
+        super().__init__(config)
+
+        self.config = config
+        self.token_embedding = nn.Embedding(config.vocab_size, config.hidden_size)
+        self.rotary_pos_emb = ClvpRotaryPositionalEmbedding(config) if config.use_rotary_embedding else None
+        self.layers = nn.ModuleList([ClvpEncoderLayer(config) for _ in range(config.num_hidden_layers)])
+
+        self.sequence_summary = SequenceSummary(config)
+        self.final_layer_norm = nn.LayerNorm(config.hidden_size, eps=config.layer_norm_eps)
+
+        self.projection = nn.Linear(config.hidden_size, config.projection_dim, bias=False)
+
+        self.gradient_checkpointing = False
+
+        self.post_init()
+
+    def get_input_embeddings(self):
+        return self.token_embedding
+
+    def set_input_embeddings(self, value):
+        self.token_embedding = value
+
+    def forward(
+        self,
+        input_ids: Optional[torch.LongTensor] = None,
+        inputs_embeds: Optional[torch.LongTensor] = None,
+        attention_mask: Optional[torch.LongTensor] = None,
+        position_ids: Optional[torch.LongTensor] = None,
+        output_attentions: Optional[bool] = None,
+        output_hidden_states: Optional[bool] = None,
+        return_dict: Optional[bool] = None,
+    ) -> Union[Tuple, BaseModelOutput]:
+        r"""
+        Args:
+            input_ids (`torch.LongTensor` of shape `(batch_size, input_ids_length)`, *optional*):
+                Indices of input sequence tokens in the vocabulary.
+
+                Indices can be obtained using [`AutoTokenizer`]. See [`PreTrainedTokenizer.encode`] and
+                [`PreTrainedTokenizer.__call__`] for details.
+
+                [What are input IDs?](../glossary#input-ids)
+            inputs_embeds (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`, *optional*):
+                input embeddings for the model. This bypasses the model's internal embedding lookup matrix.
+            attention_mask (`torch.LongTensor` of shape `(batch_size, sequence_length)`, *optional*):
+                Mask to avoid performing attention on padding token indices. Mask values selected in `[0, 1]`:
+
+                - 1 for tokens that are **not masked**,
+                - 0 for tokens that are **masked**.
+
+                [What are attention masks?](../glossary#attention-mask)
+            position_ids (`torch.LongTensor`, *optional*):
+                Denotes the position ids of `input_ids`.
+            output_attentions (`bool`, *optional*):
+                Whether or not to return the attentions tensors of all attention layers. See `attentions` under
+                returned tensors for more detail.
+            output_hidden_states (`bool`, *optional*):
+                Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors
+                for more detail.
+            return_dict (`bool`, *optional*):
+                Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple.
+        """
+        output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions
+        output_hidden_states = (
+            output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states
+        )
+        return_dict = return_dict if return_dict is not None else self.config.use_return_dict
+
+        if input_ids is not None and inputs_embeds is not None:
+            raise ValueError("You cannot specify both input_ids and inputs_embeds at the same time")
+        elif input_ids is not None:
+            self.warn_if_padding_and_no_attention_mask(input_ids, attention_mask)
+            input_shape = input_ids.size()
+            input_ids = input_ids.view(-1, input_shape[-1])
+            inputs_embeds = self.token_embedding(input_ids)
+        elif inputs_embeds is not None:
+            input_shape = inputs_embeds.size()[:-1]
+        else:
+            raise ValueError("You have to specify either input_ids or inputs_embeds")
+
+        # expand attention_mask and create position_ids if needed
+        if attention_mask is not None:
+            # [bsz, seq_len] -> [bsz, 1, tgt_seq_len, src_seq_len]
+            attention_mask = _prepare_4d_attention_mask(attention_mask, inputs_embeds.dtype)
+
+        if position_ids is None:
+            device = input_ids.device if input_ids is not None else inputs_embeds.device
+            position_ids = torch.arange(input_shape[1], dtype=torch.long, device=device)
+            position_ids = position_ids.unsqueeze(0)
+
+        encoder_states = () if output_hidden_states else None
+        all_attentions = () if output_attentions else None
+
+        rotary_pos_emb = self.rotary_pos_emb(inputs_embeds) if self.rotary_pos_emb is not None else None
+
+        hidden_states = inputs_embeds
+        for idx, encoder_layer in enumerate(self.layers):
+            if output_hidden_states:
+                encoder_states = encoder_states + (hidden_states,)
+            if self.gradient_checkpointing and self.training:
+                layer_outputs = torch.utils.checkpoint.checkpoint(
+                    encoder_layer.__call__,
+                    hidden_states,
+                    rotary_pos_emb,
+                    attention_mask,
+                    position_ids,
+                )
+            else:
+                layer_outputs = encoder_layer(
+                    hidden_states,
+                    rotary_pos_emb,
+                    attention_mask,
+                    position_ids,
+                    output_attentions=output_attentions,
+                )
+
+            hidden_states = layer_outputs[0]
+
+            if output_attentions:
+                all_attentions = all_attentions + (layer_outputs[1],)
+
+        if output_hidden_states:
+            encoder_states = encoder_states + (hidden_states,)
+
+        last_hidden_state = hidden_states
+        last_hidden_state = self.final_layer_norm(last_hidden_state)
+
+        # take the mean over axis 1 and get pooled output
+        pooled_output = self.sequence_summary(last_hidden_state)
+
+        # apply the projection layer
+        embeds = self.projection(pooled_output)
+
+        if not return_dict:
+            return tuple(
+                v for v in [embeds, last_hidden_state, pooled_output, encoder_states, all_attentions] if v is not None
+            )
+
+        return ClvpEncoderOutput(
+            embeds=embeds,
+            last_hidden_state=last_hidden_state,
+            pooler_output=pooled_output,
+            hidden_states=encoder_states,
+            attentions=all_attentions,
+        )
+
+
+class ClvpDecoder(ClvpPreTrainedModel):
+    """
+    Transformer decoder consisting of *config.num_hidden_layers* layers. Each layer is a [`ClvpDecoderLayer`]
+    """
+
+    def __init__(self, config):
+        super().__init__(config)
+
+        self.config = config
+
+        self.input_embeds_layer = nn.Embedding(self.config.vocab_size, self.config.hidden_size)
+        self.position_embeds_layer = nn.Embedding(self.config.max_position_embeddings, self.config.hidden_size)
+
+        self.drop = nn.Dropout(self.config.embd_pdrop)
+        self.layers = nn.ModuleList([ClvpDecoderLayer(self.config) for _ in range(self.config.num_hidden_layers)])
+        self.layer_norm = nn.LayerNorm(self.config.hidden_size, eps=self.config.layer_norm_epsilon)
+
+        self.gradient_checkpointing = False
+
+        # Initialize weights and apply final processing
+        self.post_init()
+
+    def get_input_embeddings(self):
+        return self.input_embeds_layer
+
+    def set_input_embeddings(self, new_embeddings):
+        self.input_embeds_layer = new_embeddings
+
+    def _prune_heads(self, heads_to_prune):
+        """
+        Prunes heads of the model. heads_to_prune: dict of {layer_num: list of heads to prune in this layer}
+        """
+        for layer, heads in heads_to_prune.items():
+            self.layers[layer].attn.prune_heads(heads)
+
+    @add_start_docstrings_to_model_forward(CLVP_DECODER_INPUTS_DOCSTRING)
+    def forward(
+        self,
+        input_ids: Optional[torch.LongTensor] = None,
+        attention_mask: Optional[torch.FloatTensor] = None,
+        token_type_ids: Optional[torch.LongTensor] = None,
+        position_ids: Optional[torch.LongTensor] = None,
+        head_mask: Optional[torch.FloatTensor] = None,
+        past_key_values: Optional[Tuple[Tuple[torch.Tensor]]] = None,
+        inputs_embeds: Optional[torch.FloatTensor] = None,
+        use_cache: Optional[bool] = None,
+        output_attentions: Optional[bool] = None,
+        output_hidden_states: Optional[bool] = None,
+        return_dict: Optional[bool] = None,
+    ) -> Union[Tuple, BaseModelOutputWithPastAndCrossAttentions]:
+        output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions
+        output_hidden_states = (
+            output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states
+        )
+        use_cache = use_cache if use_cache is not None else self.config.use_cache
+        return_dict = return_dict if return_dict is not None else self.config.use_return_dict
+
+        if input_ids is not None and inputs_embeds is not None:
+            raise ValueError("You cannot specify both input_ids and inputs_embeds at the same time")
+        elif input_ids is not None:
+            self.warn_if_padding_and_no_attention_mask(input_ids, attention_mask)
+            input_shape = input_ids.size()
+            input_ids = input_ids.view(-1, input_shape[-1])
+            input_ids.shape[0]
+        elif inputs_embeds is not None:
+            input_shape = inputs_embeds.size()[:-1]
+            inputs_embeds.shape[0]
+        else:
+            raise ValueError("You have to specify either input_ids or inputs_embeds")
+
+        device = input_ids.device if input_ids is not None else inputs_embeds.device
+
+        if token_type_ids is not None:
+            token_type_ids = token_type_ids.view(-1, input_shape[-1])
+
+        if past_key_values is None:
+            past_key_values_length = 0
+            past_key_values = tuple([None] * len(self.layers))
+        else:
+            past_key_values_length = past_key_values[0][0].size(-2)
+        if position_ids is None:
+            position_ids = torch.arange(
+                past_key_values_length, input_shape[-1] + past_key_values_length, dtype=torch.long, device=device
+            )
+            position_ids = position_ids.unsqueeze(0).view(-1, input_shape[-1])
+
+        if inputs_embeds is None:
+            inputs_embeds = self.input_embeds_layer(input_ids)
+        position_embeds = self.position_embeds_layer(position_ids)
+        inputs_embeds = inputs_embeds + position_embeds
+
+        attention_mask = _prepare_4d_causal_attention_mask(
+            attention_mask, input_shape, inputs_embeds, past_key_values_length
+        )
+
+        # Prepare head mask if needed
+        # 1.0 in head_mask indicate we keep the head
+        # attention_probs has shape bsz x num_attention_heads x N x N
+        # head_mask has shape num_hidden_layers x batch x num_attention_heads x N x N
+        head_mask = self.get_head_mask(head_mask, self.config.num_hidden_layers)
+
+        hidden_states = inputs_embeds
+
+        if token_type_ids is not None:
+            token_type_embeds = self.input_embeds_layer(token_type_ids)
+            hidden_states = hidden_states + token_type_embeds
+
+        hidden_states = self.drop(hidden_states)
+
+        output_shape = (-1,) + input_shape[1:] + (hidden_states.size(-1),)
+
+        if self.gradient_checkpointing and self.training:
+            if use_cache:
+                logger.warning_once(
+                    "`use_cache=True` is incompatible with gradient checkpointing. Setting `use_cache=False`..."
+                )
+                use_cache = False
+
+        presents = () if use_cache else None
+        all_self_attentions = () if output_attentions else None
+        all_cross_attentions = () if output_attentions and self.config.add_cross_attention else None
+        all_hidden_states = () if output_hidden_states else None
+        for i, (block, past_key_value) in enumerate(zip(self.layers, past_key_values)):
+            if output_hidden_states:
+                all_hidden_states = all_hidden_states + (hidden_states,)
+
+            if self.gradient_checkpointing and self.training:
+                outputs = torch.utils.checkpoint.checkpoint(
+                    block.__call__,
+                    hidden_states,
+                    None,
+                    attention_mask,
+                    position_ids,
+                    head_mask[i],
+                )
+            else:
+                outputs = block(
+                    hidden_states,
+                    past_key_value=past_key_value,
+                    attention_mask=attention_mask,
+                    position_ids=position_ids,
+                    head_mask=head_mask[i],
+                    use_cache=use_cache,
+                    output_attentions=output_attentions,
+                )
+
+            hidden_states = outputs[0]
+            if use_cache is True:
+                presents = presents + (outputs[1],)
+
+            if output_attentions:
+                all_self_attentions = all_self_attentions + (outputs[2 if use_cache else 1],)
+                if self.config.add_cross_attention:
+                    all_cross_attentions = all_cross_attentions + (outputs[3 if use_cache else 2],)
+
+        hidden_states = self.layer_norm(hidden_states)
+
+        hidden_states = hidden_states.view(output_shape)
+
+        # Add last hidden state
+        if output_hidden_states:
+            all_hidden_states = all_hidden_states + (hidden_states,)
+
+        if not return_dict:
+            return tuple(
+                v
+                for v in [hidden_states, presents, all_hidden_states, all_self_attentions, all_cross_attentions]
+                if v is not None
+            )
+
+        return BaseModelOutputWithPastAndCrossAttentions(
+            last_hidden_state=hidden_states,
+            past_key_values=presents,
+            hidden_states=all_hidden_states,
+            attentions=all_self_attentions,
+            cross_attentions=all_cross_attentions,
+        )
+
+
+@add_start_docstrings(
+    "The bare Clvp decoder model outputting raw hidden-states without any specific head on top.",
+    CLVP_START_DOCSTRING,
+)
+class ClvpModel(ClvpPreTrainedModel):
+    def __init__(self, config: ClvpDecoderConfig):
+        super().__init__(config)
+        self.config = config
+        self.decoder = ClvpDecoder(self.config)
+
+        # Initialize weights and apply final processing
+        self.post_init()
+
+    def get_input_embeddings(self):
+        return self.decoder.input_embeds_layer
+
+    def set_input_embeddings(self, value):
+        self.decoder.input_embeds_layer = value
+
+    def get_decoder(self):
+        return self.decoder
+
+    @add_start_docstrings_to_model_forward(CLVP_DECODER_INPUTS_DOCSTRING)
+    def forward(
+        self,
+        input_ids: Optional[torch.LongTensor] = None,
+        attention_mask: Optional[torch.FloatTensor] = None,
+        token_type_ids: Optional[torch.LongTensor] = None,
+        position_ids: Optional[torch.LongTensor] = None,
+        head_mask: Optional[torch.FloatTensor] = None,
+        past_key_values: Optional[Tuple[Tuple[torch.Tensor]]] = None,
+        inputs_embeds: Optional[torch.FloatTensor] = None,
+        use_cache: Optional[bool] = None,
+        output_attentions: Optional[bool] = None,
+        output_hidden_states: Optional[bool] = None,
+        return_dict: Optional[bool] = None,
+    ) -> Union[Tuple, BaseModelOutputWithPastAndCrossAttentions]:
+        output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions
+        output_hidden_states = (
+            output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states
+        )
+        use_cache = use_cache if use_cache is not None else self.config.use_cache
+        return_dict = return_dict if return_dict is not None else self.config.use_return_dict
+
+        # decoder outputs consists of (dec_features, past_key_value, dec_hidden, dec_attn)
+        decoder_outputs = self.decoder(
+            input_ids=input_ids,
+            attention_mask=attention_mask,
+            token_type_ids=token_type_ids,
+            position_ids=position_ids,
+            head_mask=head_mask,
+            past_key_values=past_key_values,
+            inputs_embeds=inputs_embeds,
+            use_cache=use_cache,
+            output_attentions=output_attentions,
+            output_hidden_states=output_hidden_states,
+            return_dict=return_dict,
+        )
+
+        if not return_dict:
+            return decoder_outputs
+
+        return BaseModelOutputWithPastAndCrossAttentions(
+            last_hidden_state=decoder_outputs.last_hidden_state,
+            past_key_values=decoder_outputs.past_key_values,
+            hidden_states=decoder_outputs.hidden_states,
+            attentions=decoder_outputs.attentions,
+            cross_attentions=decoder_outputs.cross_attentions,
+        )
+
+
+@add_start_docstrings(
+    "The CLVP decoder model with a language modelling head on top.",
+    CLVP_START_DOCSTRING,
+)
+class ClvpForCausalLM(ClvpPreTrainedModel):
+    def __init__(self, config):
+        super().__init__(config)
+
+        self.config = config
+        self.model = ClvpModel(self.config)
+
+        self.final_norm = nn.LayerNorm(self.config.hidden_size)
+        self.lm_head = nn.Linear(self.config.hidden_size, self.config.vocab_size, bias=True)
+
+        # Initialize weights and apply final processing
+        self.post_init()
+
+    def get_input_embeddings(self):
+        return self.model.decoder.input_embeds_layer
+
+    def set_input_embeddings(self, new_embeddings):
+        self.model.decoder.input_embeds_layer = new_embeddings
+
+    def _prepare_model_inputs(
+        self,
+        inputs: Optional[torch.Tensor] = None,
+        bos_token_id: Optional[int] = None,
+        model_kwargs: Optional[Dict[str, torch.Tensor]] = None,
+    ) -> Tuple[torch.Tensor, Optional[str], Dict[str, torch.Tensor]]:
+        """
+        This function extracts the model-specific `inputs` for generation.
+        """
+        input_name = self.main_input_name
+
+        model_kwargs = {k: v for k, v in model_kwargs.items() if v is not None}
+
+        inputs_kwarg = model_kwargs.pop(input_name, None)
+        if inputs_kwarg is not None and inputs is not None:
+            raise ValueError(
+                f"`inputs`: {inputs}` were passed alongside {input_name} which is not allowed."
+                f"Make sure to either pass {inputs} or {input_name}=..."
+            )
+        elif inputs_kwarg is not None:
+            inputs = inputs_kwarg
+
+        if input_name == "input_ids" and "inputs_embeds" in model_kwargs:
+            model_kwargs["input_ids"] = self._maybe_initialize_input_ids_for_generation(
+                inputs, bos_token_id, model_kwargs=model_kwargs
+            )
+            inputs, input_name = model_kwargs["inputs_embeds"], "inputs_embeds"
+
+        # Check if conditioning_embeds are provided or not, if yes then concatenate the bos_token_id at the end of the conditioning_embeds.
+        # Then we must subtract the positional_ids because during the forward pass it will be added anyways, so we must cancel them out here.
+        conditioning_embeds = model_kwargs.get("conditioning_embeds", None)
+
+        if conditioning_embeds is not None:
+            mel_start_token_embedding = self.model.decoder.input_embeds_layer(
+                torch.full(
+                    (conditioning_embeds.shape[0], 1),
+                    fill_value=self.config.bos_token_id,
+                    device=conditioning_embeds.device,
+                )
+            )
+            mel_start_token_embedding += self.model.decoder.position_embeds_layer(
+                torch.full((conditioning_embeds.shape[0], 1), fill_value=0, device=conditioning_embeds.device)
+            )
+            conditioning_embeds = torch.concat([conditioning_embeds, mel_start_token_embedding], dim=1)
+
+            # subtract the positional_ids here
+            if hasattr(model_kwargs, "attention_mask"):
+                position_ids = model_kwargs["attention_mask"].long().cumsum(-1) - 1
+            else:
+                position_ids = torch.range(
+                    0, conditioning_embeds.shape[1] - 1, dtype=torch.long, device=conditioning_embeds.device
+                )
+            position_ids = position_ids.unsqueeze(0).repeat(conditioning_embeds.shape[0], 1)
+
+            model_kwargs["inputs_embeds"] = conditioning_embeds - self.model.decoder.position_embeds_layer(
+                position_ids
+            )
+            model_kwargs["input_ids"] = (
+                torch.ones((model_kwargs["inputs_embeds"].shape[0], 1), dtype=torch.long, device=self.device)
+                * self.config.bos_token_id
+            )
+
+            return model_kwargs["inputs_embeds"], "inputs_embeds", model_kwargs
+
+        inputs = self._maybe_initialize_input_ids_for_generation(inputs, bos_token_id, model_kwargs)
+        return inputs, input_name, model_kwargs
+
+    def prepare_inputs_for_generation(
+        self, input_ids, past_key_values=None, inputs_embeds=None, conditioning_embeds=None, **kwargs
+    ):
+        input_ids_length = input_ids.shape[-1]
+        token_type_ids = kwargs.get("token_type_ids", None)
+        # only last token for inputs_ids if past is defined in kwargs
+        if past_key_values:
+            past_length = past_key_values[0][0].shape[2]
+
+            # Some generation methods already pass only the last input ID
+            if input_ids.shape[1] > past_length:
+                remove_prefix_length = past_length
+            else:
+                # Default to old behavior: keep only final ID
+                remove_prefix_length = input_ids.shape[1] - 1
+
+            input_ids = input_ids[:, remove_prefix_length:]
+            if token_type_ids is not None:
+                token_type_ids = token_type_ids[:, -input_ids.shape[1] :]
+
+        attention_mask = kwargs.get("attention_mask", None)
+        position_ids = kwargs.get("position_ids", None)
+
+        if attention_mask is not None and position_ids is None:
+            # create position_ids on the fly for batch generation
+            position_ids = attention_mask.long().cumsum(-1) - 1
+            position_ids.masked_fill_(attention_mask == 0, 1)
+            if past_key_values:
+                position_ids = position_ids[:, -1].unsqueeze(-1)
+        else:
+            position_ids = None
+
+        if conditioning_embeds is not None and past_key_values is not None:
+            position_ids = torch.tensor([input_ids_length], dtype=torch.long, device=input_ids.device)
+
+        # if `inputs_embeds` are passed, we only want to use them in the 1st generation step
+        if inputs_embeds is not None and past_key_values is None:
+            model_inputs = {"inputs_embeds": inputs_embeds}
+        else:
+            model_inputs = {"input_ids": input_ids}
+
+        model_inputs.update(
+            {
+                "past_key_values": past_key_values,
+                "use_cache": kwargs.get("use_cache"),
+                "position_ids": position_ids,
+                "token_type_ids": token_type_ids,
+            }
+        )
+        return model_inputs
+
+    @add_start_docstrings_to_model_forward(CLVP_DECODER_INPUTS_DOCSTRING)
+    def forward(
+        self,
+        input_ids: Optional[torch.LongTensor] = None,
+        past_key_values: Optional[Tuple[Tuple[torch.Tensor]]] = None,
+        attention_mask: Optional[torch.FloatTensor] = None,
+        token_type_ids: Optional[torch.LongTensor] = None,
+        position_ids: Optional[torch.LongTensor] = None,
+        head_mask: Optional[torch.FloatTensor] = None,
+        inputs_embeds: Optional[torch.FloatTensor] = None,
+        labels: Optional[torch.LongTensor] = None,
+        use_cache: Optional[bool] = None,
+        output_attentions: Optional[bool] = None,
+        output_hidden_states: Optional[bool] = None,
+        return_dict: Optional[bool] = None,
+    ) -> Union[Tuple, CausalLMOutputWithCrossAttentions]:
+        r"""
+        labels (`torch.LongTensor` of shape `(batch_size, sequence_length)`, *optional*):
+            Labels for language modeling. Note that the labels **are shifted** inside the model, i.e. you can set
+            `labels = input_ids` Indices are selected in `[-100, 0, ..., config.vocab_size]` All labels set to `-100`
+            are ignored (masked), the loss is only computed for labels in `[0, ..., config.vocab_size]`
+        """
+
+        output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions
+        output_hidden_states = (
+            output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states
+        )
+        use_cache = use_cache if use_cache is not None else self.config.use_cache
+        return_dict = return_dict if return_dict is not None else self.config.use_return_dict
+
+        outputs = self.model(
+            input_ids=input_ids,
+            past_key_values=past_key_values,
+            attention_mask=attention_mask,
+            token_type_ids=token_type_ids,
+            position_ids=position_ids,
+            head_mask=head_mask,
+            inputs_embeds=inputs_embeds,
+            use_cache=use_cache,
+            output_attentions=output_attentions,
+            output_hidden_states=output_hidden_states,
+            return_dict=return_dict,
+        )
+
+        hidden_states = outputs[0]
+
+        lm_logits = self.final_norm(hidden_states)
+        lm_logits = self.lm_head(lm_logits)
+
+        loss = None
+        if labels is not None:
+            labels = labels.to(lm_logits.device)
+            # Shift so that tokens < n predict n
+            shift_logits = lm_logits[..., :-1, :].contiguous()
+            shift_labels = labels[..., 1:].contiguous()
+            # Flatten the tokens
+            loss_fct = CrossEntropyLoss()
+            loss = loss_fct(shift_logits.view(-1, shift_logits.size(-1)), shift_labels.view(-1))
+
+        if not return_dict:
+            output = (lm_logits,) + outputs[1:]
+            return ((loss,) + output) if loss is not None else output
+
+        return CausalLMOutputWithCrossAttentions(
+            loss=loss,
+            logits=lm_logits,
+            past_key_values=outputs.past_key_values,
+            hidden_states=outputs.hidden_states,
+            attentions=outputs.attentions,
+            cross_attentions=outputs.cross_attentions,
+        )
+
+    @staticmethod
+    # Copied from transformers.models.gpt2.modeling_gpt2.GPT2LMHeadModel._reorder_cache
+    def _reorder_cache(
+        past_key_values: Tuple[Tuple[torch.Tensor]], beam_idx: torch.Tensor
+    ) -> Tuple[Tuple[torch.Tensor]]:
+        """
+        This function is used to re-order the `past_key_values` cache if [`~PreTrainedModel.beam_search`] or
+        [`~PreTrainedModel.beam_sample`] is called. This is required to match `past_key_values` with the correct
+        beam_idx at every generation step.
+        """
+        return tuple(
+            tuple(past_state.index_select(0, beam_idx.to(past_state.device)) for past_state in layer_past)
+            for layer_past in past_key_values
+        )
+
+
+@add_start_docstrings(
+    "The composite CLVP model with a text encoder, speech encoder and speech decoder model."
+    "The speech decoder model generates the speech_ids from the text and the text encoder and speech encoder works"
+    "together to filter out the best speech_ids.",
+    CLVP_START_DOCSTRING,
+)
+class ClvpModelForConditionalGeneration(ClvpPreTrainedModel):
+    config_class = ClvpConfig
+
+    def __init__(self, config: ClvpConfig):
+        super().__init__(config)
+
+        if not isinstance(config.text_config, ClvpEncoderConfig):
+            raise ValueError(
+                "config.text_config is expected to be of type `ClvpEncoderConfig` but is of type"
+                f" {type(config.text_config)}."
+            )
+
+        if not isinstance(config.speech_config, ClvpEncoderConfig):
+            raise ValueError(
+                "config.speech_config is expected to be of type `ClvpEncoderConfig` but is of type"
+                f" {type(config.speech_config)}."
+            )
+
+        if not isinstance(config.decoder_config, ClvpDecoderConfig):
+            raise ValueError(
+                "config.decoder_config is expected to be of type `ClvpDecoderConfig` but is of type"
+                f" {type(config.decoder_config)}."
+            )
+
+        self.conditioning_encoder = ClvpConditioningEncoder(config)
+
+        self.speech_decoder_model = ClvpForCausalLM(config.decoder_config)
+
+        self.text_encoder_model = ClvpEncoder(config.text_config)
+        self.speech_encoder_model = ClvpEncoder(config.speech_config)
+
+        self.logit_scale = nn.Parameter(torch.tensor(self.config.logit_scale_init_value))
+
+        # Initialize weights and apply final processing
+        self.post_init()
+
+    # taken from the original repo,
+    # link : https://github.com/neonbjb/tortoise-tts/blob/4003544b6ff4b68c09856e04d3eff9da26d023c2/tortoise/api.py#L117
+    def fix_speech_decoder_output(self, speech_ids: torch.LongTensor) -> torch.LongTensor:
+        """
+        This method modifies the output of the decoder model, such as replacing the `eos_token_id` and changing the
+        last few tokens of each sequence.
+
+        Args:
+            speech_ids (`torch.LongTensor`):
+                This refers to the output of the decoder model.
+        """
+        decoder_fixing_codes = self.config.decoder_config.decoder_fixing_codes
+        speech_ids = speech_ids[:, 1:]
+
+        stop_token_indices = torch.where(speech_ids == self.speech_decoder_model.config.eos_token_id, 1, 0)
+        speech_ids = torch.masked_fill(speech_ids, mask=stop_token_indices.bool(), value=decoder_fixing_codes[0])
+
+        for i, each_seq_stop_token_index in enumerate(stop_token_indices):
+            # This means that no stop tokens were found so the sentence was still being generated, in that case we don't need
+            # to apply any padding so just skip to the next sequence of tokens.
+            if each_seq_stop_token_index.sum() == 0:
+                continue
+
+            stm = each_seq_stop_token_index.argmax()
+            speech_ids[i, stm:] = decoder_fixing_codes[0]
+            if stm - 3 < speech_ids.shape[1]:
+                speech_ids[i, -3:] = torch.tensor(
+                    [decoder_fixing_codes[1:]], device=speech_ids.device, dtype=torch.long
+                )
+
+        return speech_ids
+
+    def get_text_features(
+        self,
+        input_ids: Optional[torch.LongTensor] = None,
+        text_encoder_inputs_embeds: Optional[torch.FloatTensor] = None,
+        attention_mask: Optional[torch.LongTensor] = None,
+    ) -> torch.FloatTensor:
+        r"""
+        This method can be used to extract text_embeds from a text. The text embeddings obtained by applying the
+        projection layer to the pooled output of the CLVP text encoder model.
+
+        Args:
+            input_ids (`torch.LongTensor` of shape `(batch_size, sequence_length)`):
+                Indices of input sequence tokens in the vocabulary. Padding will be ignored by default should you
+                provide it.
+
+                [What are input IDs?](../glossary#input-ids)
+            text_encoder_inputs_embeds (`torch.FloatTensor`, *optional*):
+                inputs_embeds for the text encoder model passed in place of `input_ids`.
+            attention_mask (`torch.Tensor` of shape `(batch_size, sequence_length)`, *optional*):
+                Mask to avoid performing attention on padding token indices. Mask values selected in `[0, 1]`:
+
+                - 1 for tokens that are **not masked**,
+                - 0 for tokens that are **masked**.
+
+                [What are attention masks?](../glossary#attention-mask)
+
+        Returns:
+            `torch.FloatTensor` of shape `(batch_size, output_dim)`:
+                The text embeddings obtained by applying the projection layer to the pooled output of the CLVP Text
+                Model.
+
+        Examples:
+
+        ```python
+        >>> from transformers import ClvpProcessor, ClvpModelForConditionalGeneration
+
+        >>> # Define the Text
+        >>> text = "This is an example text."
+
+        >>> # Define processor and model
+        >>> processor = ClvpProcessor.from_pretrained("susnato/clvp_dev")
+        >>> model = ClvpModelForConditionalGeneration.from_pretrained("susnato/clvp_dev")
+
+        >>> # Generate processor output and text embeds
+        >>> processor_output = processor(text=text, return_tensors="pt")
+        >>> text_embeds = model.get_text_features(input_ids=processor_output["input_ids"])
+        ```
+        """
+
+        outputs = self.text_encoder_model(
+            input_ids=input_ids,
+            inputs_embeds=text_encoder_inputs_embeds,
+            attention_mask=attention_mask,
+        )
+
+        return outputs[0]
+
+    def get_speech_features(
+        self,
+        speech_ids: Optional[torch.LongTensor] = None,
+        input_ids: Optional[torch.LongTensor] = None,
+        input_features: Optional[torch.FloatTensor] = None,
+        conditioning_encoder_inputs_embeds: Optional[torch.FloatTensor] = None,
+        attention_mask: Optional[torch.Tensor] = None,
+        generation_config: Optional[GenerationConfig] = None,
+        **kwargs,
+    ) -> torch.FloatTensor:
+        r"""
+        This method can be used to extract speech_embeds. The speech embeddings are obtained by applying the speech
+        model on speech_ids. If speech_ids is not present but both input_ids and input_features are given then the
+        decoder model will be used to first generate the speech_ids and then applying the speech model.
+
+        Args:
+            speech_ids (`torch.LongTensor` of shape `(batch_size, num_speech_ids)`, *optional*):
+                Speech Tokens. Padding will be ignored by default should you provide it. If speech_ids are provided
+                then input_ids and input_features will be automatically ignored.
+            input_ids (`torch.LongTensor` of shape `(batch_size, sequence_length)`, *optional*):
+                Input text Tokens. Processed from the [`ClvpTokenizer`]. If speech_ids is not provided, then input_ids
+                and input_features will be used.
+            input_features (`torch.FloatTensor` of shape `(batch_size, feature_size, time_dim)`, *optional*):
+                Indicates log-melspectrogram representations for audio returned by [`ClvpFeatureExtractor`]. If
+                speech_ids is not provided, then input_ids and input_features will be used.
+            conditioning_encoder_inputs_embeds (`torch.FloatTensor`, *optional*):
+                inputs_embeds for `ClvpConditioningEncoder`. Can be used in place of `input_ids`.
+            attention_mask (`torch.LongTensor` of shape `(batch_size, sequence_length)`, *optional*):
+                Mask to avoid performing attention on padding speech token indices. Mask values selected in `[0, 1]`:
+
+                - 1 for tokens that are **not masked**,
+                - 0 for tokens that are **masked**.
+
+                [What are attention masks?](../glossary#attention-mask)
+            generation_config (`GenerationConfig`, *optional*):
+                generation config to control the generation of speech_ids if they are not provided.
+
+        Returns:
+            `torch.FloatTensor` of shape `(batch_size, output_dim)`:
+                The speech embeddings obtained by applying the projection layer to the pooled output of the CLVP Speech
+                Model.
+
+        Examples:
+
+        ```python
+        >>> import datasets
+        >>> from transformers import ClvpProcessor, ClvpModelForConditionalGeneration
+
+        >>> # Define the Text and Load the Audio (We are taking an audio example from HuggingFace Hub using `datasets` library)
+        >>> text = "This is an example text."
+        >>> ds = datasets.load_dataset("hf-internal-testing/librispeech_asr_dummy", "clean", split="validation")
+        >>> ds = ds.cast_column("audio", datasets.Audio(sampling_rate=22050))
+        >>> _, audio, sr = ds.sort("id").select(range(1))[:1]["audio"][0].values()
+
+        >>> # Define processor and model
+        >>> processor = ClvpProcessor.from_pretrained("susnato/clvp_dev")
+        >>> model = ClvpModelForConditionalGeneration.from_pretrained("susnato/clvp_dev")
+
+        >>> # Generate processor output and model output
+        >>> processor_output = processor(raw_speech=audio, sampling_rate=sr, text=text, return_tensors="pt")
+        >>> speech_embeds = model.get_speech_features(
+        ...     input_ids=processor_output["input_ids"], input_features=processor_output["input_features"]
+        ... )
+        ```
+        """
+
+        if speech_ids is None:
+            if (input_ids is None and conditioning_encoder_inputs_embeds is None) or input_features is None:
+                raise ValueError(
+                    "Either speech_ids or input_ids/conditioning_encoder_inputs_embeds and input_features must be provided."
+                )
+
+            if generation_config is None:
+                generation_config = self.generation_config
+            generation_config.update(**kwargs)
+
+            conditioning_embeds = self.conditioning_encoder(
+                input_features=input_features,
+                input_ids=input_ids,
+                inputs_embeds=conditioning_encoder_inputs_embeds,
+                attention_mask=attention_mask,
+            )
+
+            speech_ids = self.speech_decoder_model.generate(
+                conditioning_embeds=conditioning_embeds,
+                generation_config=generation_config,
+            )
+
+            speech_ids = self.fix_speech_decoder_output(speech_ids[0])
+
+        outputs = self.speech_encoder_model(
+            input_ids=speech_ids,
+            attention_mask=attention_mask,
+        )
+
+        return outputs[0]
+
+    @add_start_docstrings_to_model_forward(CLVP_INPUTS_DOCSTRING)
+    @replace_return_docstrings(output_type=ClvpOutput, config_class=ClvpConfig)
+    def forward(
+        self,
+        input_ids: torch.LongTensor = None,
+        input_features: torch.FloatTensor = None,
+        conditioning_encoder_inputs_embeds: Optional[torch.FloatTensor] = None,
+        text_encoder_inputs_embeds: Optional[torch.FloatTensor] = None,
+        attention_mask: Optional[torch.LongTensor] = None,
+        return_loss: Optional[bool] = None,
+        output_hidden_states: Optional[bool] = None,
+        output_attentions: Optional[bool] = False,
+        return_dict: Optional[bool] = None,
+    ) -> Union[Tuple, ClvpOutput]:
+        r"""
+        Returns:
+
+        Examples:
+
+        ```python
+        >>> import datasets
+        >>> from transformers import ClvpProcessor, ClvpModelForConditionalGeneration
+
+        >>> # Define the Text and Load the Audio (We are taking an audio example from HuggingFace Hub using `datasets` library)
+        >>> text = "This is an example text."
+
+        >>> ds = datasets.load_dataset("hf-internal-testing/librispeech_asr_dummy", "clean", split="validation")
+        >>> ds = ds.cast_column("audio", datasets.Audio(sampling_rate=22050))
+        >>> _, audio, sr = ds.sort("id").select(range(1))[:1]["audio"][0].values()
+
+        >>> # Define processor and model
+        >>> processor = ClvpProcessor.from_pretrained("susnato/clvp_dev")
+        >>> model = ClvpModelForConditionalGeneration.from_pretrained("susnato/clvp_dev")
+
+        >>> # processor outputs and model outputs
+        >>> processor_output = processor(raw_speech=audio, sampling_rate=sr, text=text, return_tensors="pt")
+        >>> outputs = model(
+        ...     input_ids=processor_output["input_ids"],
+        ...     input_features=processor_output["input_features"],
+        ...     return_dict=True,
+        ... )
+        ```
+        """
+
+        # Use CLVP model's config for some fields (if specified) instead of those of speech & text components.
+        output_hidden_states = (
+            output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states
+        )
+        return_dict = return_dict if return_dict is not None else self.config.use_return_dict
+
+        conditioning_embeds = self.conditioning_encoder(
+            input_features=input_features,
+            input_ids=input_ids,
+            inputs_embeds=conditioning_encoder_inputs_embeds,
+            attention_mask=attention_mask,
+        )
+
+        decoder_outputs = self.speech_decoder_model(
+            inputs_embeds=conditioning_embeds,
+            output_hidden_states=output_hidden_states,
+            return_dict=return_dict,
+        )
+
+        speech_ids = decoder_outputs[0]
+
+        # since we will get the embeds of shape `(batch_size, seq_len, embedding_dim)` during the forward pass
+        # we must convert it to tokens, to make it compaitable with speech_transformer
+        if speech_ids.ndim == 3:
+            speech_ids = speech_ids.argmax(2)
+        speech_ids = self.fix_speech_decoder_output(speech_ids)
+
+        speech_outputs = self.speech_encoder_model(
+            input_ids=speech_ids,
+            output_hidden_states=output_hidden_states,
+            return_dict=return_dict,
+        )
+
+        text_outputs = self.text_encoder_model(
+            input_ids=input_ids,
+            inputs_embeds=text_encoder_inputs_embeds,
+            attention_mask=attention_mask,
+            output_hidden_states=output_hidden_states,
+            return_dict=return_dict,
+        )
+
+        speech_embeds = speech_outputs[0]
+        text_embeds = text_outputs[0]
+
+        # normalized features
+        speech_embeds = speech_embeds / speech_embeds.norm(p=2, dim=-1, keepdim=True)
+        text_embeds = text_embeds / text_embeds.norm(p=2, dim=-1, keepdim=True)
+
+        # cosine similarity as logits
+        logit_scale = self.logit_scale.exp()
+        logits_per_text = torch.matmul(text_embeds, speech_embeds.t()) * logit_scale
+        logits_per_speech = logits_per_text.t()
+
+        loss = None
+        if return_loss:
+            loss = clvp_loss(logits_per_text)
+
+        if not return_dict:
+            output = (
+                logits_per_speech,
+                logits_per_text,
+                text_embeds,
+                speech_embeds,
+                text_outputs[2],
+                speech_outputs[2],
+            )
+            if output_hidden_states:
+                output += (
+                    decoder_outputs[-1],
+                    text_outputs[-1],
+                    speech_outputs[-1],
+                )
+
+            return ((loss,) + output) if loss is not None else output
+
+        return ClvpOutput(
+            loss=loss,
+            logits_per_speech=logits_per_speech,
+            logits_per_text=logits_per_text,
+            text_embeds=text_embeds,
+            speech_embeds=speech_embeds,
+            text_model_output=text_outputs[2],
+            speech_model_output=speech_outputs[2],
+            decoder_hidden_states=decoder_outputs.hidden_states,
+            text_encoder_hidden_states=text_outputs.hidden_states,
+            speech_encoder_hidden_states=speech_outputs.hidden_states,
+        )
+
+    @torch.no_grad()
+    def generate(
+        self,
+        input_ids: torch.LongTensor = None,
+        input_features: torch.FloatTensor = None,
+        attention_mask: Optional[torch.LongTensor] = None,
+        generation_config: Optional[GenerationConfig] = None,
+        pad_to_max_mel_tokens: Optional[int] = None,
+        output_hidden_states: Optional[bool] = None,
+        **kwargs,
+    ):
+        """
+        Generate method for `ClvpModelForConditionalGeneration`, this method calls the `generate` method of
+        `ClvpForCausalLM` and then uses those generated `speech_ids` to process `text_embeds` and `speech_embeds` using
+        `ClvpEncoder`.
+
+        Args:
+            input_ids (`torch.FloatTensor` of shape `(batch_size, sequence_length)`, *optional*):
+                Input text Tokens. Processed from the [`ClvpTokenizer`].
+            input_features (`torch.FloatTensor` of shape `(batch_size, feature_size, time_dim)`, *optional*):
+                Indicates log-melspectrogram representations for audio returned by [`ClvpFeatureExtractor`].
+            attention_mask (`torch.Tensor` of shape `(batch_size, sequence_length)`, *optional*):
+                Mask to avoid performing attention on padding text token indices. Mask values selected in `[0, 1]`:
+
+                - 1 for tokens that are **not masked**,
+                - 0 for tokens that are **masked**.
+
+                [What are attention masks?](../glossary#attention-mask)
+            generation_config (`~generation.GenerationConfig`, *optional*):
+                The generation configuration to be used as base parametrization for the generation call. `**kwargs`
+                passed to generate matching the attributes of `generation_config` will override them. If
+                `generation_config` is not provided, the default will be used, which had the following loading
+                priority: 1) from the `generation_config.json` model file, if it exists; 2) from the model
+                configuration. Please note that unspecified parameters will inherit [`~generation.GenerationConfig`]'s
+                default values, whose documentation should be checked to parameterize generation.
+            pad_to_max_mel_tokens (`int`, *optional*):
+                Pads generated speech_ids to the specified value. This is to implement the same logic from the official
+                repo, link: https://github.com/neonbjb/tortoise-tts/blob/80f89987a5abda5e2b082618cd74f9c7411141dc/tortoise/api.py#L430
+                and to make sure the logits are same.
+                This does not affect generation quality so please don't consider using it since it is less efficient.
+            output_hidden_states (`bool`, *optional*):
+                Whether or not to return the hidden states of decoder model, text encoder and speech encoder models.
+
+        Returns:
+            `ClvpOutput` or tuple: A `ClvpOutput` (if `return_dict_in_generate=True` or when
+            `config.return_dict_in_generate=True`) or a tuple.
+        """
+
+        # If the input sequences are larger than (self.config.decoder_config.max_text_tokens - 3) then raise error,
+        # because we need to add 3 tokens ( 1 bos tokens and 2 eos tokens) to the input_ids in ClvpConditioningEncoder to
+        # properly sample
+        sequence_length = input_ids.shape[-1]
+        if sequence_length > (self.config.decoder_config.max_text_tokens - 3):
+            raise ValueError(
+                f"Maximum sequence length reached! Found input_ids of length {sequence_length}."
+                f"Please make sure that the maximum length of input_ids is {self.config.decoder_config.max_text_tokens - 3}"
+            )
+
+        if generation_config is None:
+            generation_config = self.generation_config
+
+        generation_config = copy.deepcopy(generation_config)
+        model_kwargs = generation_config.update(**kwargs)  # All unused kwargs must be model kwargs
+        generation_config.validate()
+        self._validate_model_kwargs(model_kwargs.copy())
+
+        # pad input_ids as specified in the original repo
+        # link: https://github.com/neonbjb/tortoise-tts/blob/80f89987a5abda5e2b082618cd74f9c7411141dc/tortoise/api.py#L380
+        input_ids, attention_mask = _pad_extra_bos_eos_tokens(
+            input_ids,
+            attention_mask,
+            add_bos_token=False,
+            bos_token_id=self.config.text_config.bos_token_id,
+            eos_token_id=self.config.text_config.eos_token_id,
+        )
+
+        conditioning_embeds = self.conditioning_encoder(
+            input_features=input_features,
+            input_ids=input_ids,
+            attention_mask=attention_mask,
+        )
+
+        decoder_outputs = self.speech_decoder_model.generate(
+            conditioning_embeds=conditioning_embeds,
+            generation_config=generation_config,
+            output_hidden_states=output_hidden_states,
+            return_dict=generation_config.return_dict_in_generate,
+        )
+        if isinstance(decoder_outputs, ModelOutput):
+            speech_ids = decoder_outputs.sequences
+
+        # pad to pad_to_max_mel_tokens if given, to replicate the original repo logic
+        # link: https://github.com/neonbjb/tortoise-tts/blob/80f89987a5abda5e2b082618cd74f9c7411141dc/tortoise/api.py#L430
+        if pad_to_max_mel_tokens is not None:
+            padding_needed = pad_to_max_mel_tokens - speech_ids.shape[-1]
+            speech_ids = torch.nn.functional.pad(
+                speech_ids, (0, padding_needed), value=self.generation_config.eos_token_id
+            )
+
+        speech_ids = self.fix_speech_decoder_output(speech_ids)
+
+        speech_outputs = self.speech_encoder_model(
+            input_ids=speech_ids,
+            output_hidden_states=output_hidden_states,
+            return_dict=generation_config.return_dict_in_generate,
+        )
+        text_outputs = self.text_encoder_model(
+            input_ids=input_ids,
+            attention_mask=attention_mask,
+            output_hidden_states=output_hidden_states,
+            return_dict=generation_config.return_dict_in_generate,
+        )
+
+        speech_embeds = speech_outputs[0]
+        text_embeds = text_outputs[0]
+
+        # normalized features
+        speech_embeds = speech_embeds / speech_embeds.norm(p=2, dim=-1, keepdim=True)
+        text_embeds = text_embeds / text_embeds.norm(p=2, dim=-1, keepdim=True)
+
+        # cosine similarity as logits
+        logit_scale = self.logit_scale.exp()
+        logits_per_text = torch.matmul(text_embeds, speech_embeds.t()) * logit_scale
+        logits_per_speech = logits_per_text.t()
+
+        if not generation_config.return_dict_in_generate:
+            output = (
+                speech_ids,
+                logits_per_speech,
+                logits_per_text,
+                text_embeds,
+                speech_embeds,
+                text_outputs[2],
+                speech_outputs[2],
+            )
+            if output_hidden_states:
+                output += (
+                    decoder_outputs[-1],
+                    text_outputs[-1],
+                    speech_outputs[-1],
+                )
+
+            return output
+
+        return ClvpOutput(
+            speech_ids=speech_ids,
+            logits_per_speech=logits_per_speech,
+            logits_per_text=logits_per_text,
+            text_embeds=text_embeds,
+            speech_embeds=speech_embeds,
+            text_model_output=text_outputs[2],
+            speech_model_output=speech_outputs[2],
+            decoder_hidden_states=decoder_outputs.hidden_states,
+            text_encoder_hidden_states=text_outputs.hidden_states,
+            speech_encoder_hidden_states=speech_outputs.hidden_states,
+        )

env-llmeval/lib/python3.10/site-packages/transformers/models/clvp/number_normalizer.py

@@ -0,0 +1,238 @@
+# coding=utf-8
+# Copyright 2023 The HuggingFace Inc. team.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""English Normalizer class for CLVP."""
+
+
+import re
+
+
+class EnglishNormalizer:
+    def __init__(self):
+        # List of (regular expression, replacement) pairs for abbreviations:
+        self._abbreviations = [
+            (re.compile("\\b%s\\." % x[0], re.IGNORECASE), x[1])
+            for x in [
+                ("mrs", "misess"),
+                ("mr", "mister"),
+                ("dr", "doctor"),
+                ("st", "saint"),
+                ("co", "company"),
+                ("jr", "junior"),
+                ("maj", "major"),
+                ("gen", "general"),
+                ("drs", "doctors"),
+                ("rev", "reverend"),
+                ("lt", "lieutenant"),
+                ("hon", "honorable"),
+                ("sgt", "sergeant"),
+                ("capt", "captain"),
+                ("esq", "esquire"),
+                ("ltd", "limited"),
+                ("col", "colonel"),
+                ("ft", "fort"),
+            ]
+        ]
+
+        self.ones = ["", "one", "two", "three", "four", "five", "six", "seven", "eight", "nine"]
+        self.teens = [
+            "ten",
+            "eleven",
+            "twelve",
+            "thirteen",
+            "fourteen",
+            "fifteen",
+            "sixteen",
+            "seventeen",
+            "eighteen",
+            "nineteen",
+        ]
+        self.tens = ["", "", "twenty", "thirty", "forty", "fifty", "sixty", "seventy", "eighty", "ninety"]
+
+    def number_to_words(self, num: int) -> str:
+        """
+        Converts numbers(`int`) to words(`str`).
+
+        Please note that it only supports upto - "'nine hundred ninety-nine quadrillion, nine hundred ninety-nine
+        trillion, nine hundred ninety-nine billion, nine hundred ninety-nine million, nine hundred ninety-nine
+        thousand, nine hundred ninety-nine'" or `number_to_words(999_999_999_999_999_999)`.
+        """
+        if num == 0:
+            return "zero"
+        elif num < 0:
+            return "minus " + self.number_to_words(abs(num))
+        elif num < 10:
+            return self.ones[num]
+        elif num < 20:
+            return self.teens[num - 10]
+        elif num < 100:
+            return self.tens[num // 10] + ("-" + self.number_to_words(num % 10) if num % 10 != 0 else "")
+        elif num < 1000:
+            return (
+                self.ones[num // 100] + " hundred" + (" " + self.number_to_words(num % 100) if num % 100 != 0 else "")
+            )
+        elif num < 1_000_000:
+            return (
+                self.number_to_words(num // 1000)
+                + " thousand"
+                + (", " + self.number_to_words(num % 1000) if num % 1000 != 0 else "")
+            )
+        elif num < 1_000_000_000:
+            return (
+                self.number_to_words(num // 1_000_000)
+                + " million"
+                + (", " + self.number_to_words(num % 1_000_000) if num % 1_000_000 != 0 else "")
+            )
+        elif num < 1_000_000_000_000:
+            return (
+                self.number_to_words(num // 1_000_000_000)
+                + " billion"
+                + (", " + self.number_to_words(num % 1_000_000_000) if num % 1_000_000_000 != 0 else "")
+            )
+        elif num < 1_000_000_000_000_000:
+            return (
+                self.number_to_words(num // 1_000_000_000_000)
+                + " trillion"
+                + (", " + self.number_to_words(num % 1_000_000_000_000) if num % 1_000_000_000_000 != 0 else "")
+            )
+        elif num < 1_000_000_000_000_000_000:
+            return (
+                self.number_to_words(num // 1_000_000_000_000_000)
+                + " quadrillion"
+                + (
+                    ", " + self.number_to_words(num % 1_000_000_000_000_000)
+                    if num % 1_000_000_000_000_000 != 0
+                    else ""
+                )
+            )
+        else:
+            return "number out of range"
+
+    def convert_to_ascii(self, text: str) -> str:
+        """
+        Converts unicode to ascii
+        """
+        return text.encode("ascii", "ignore").decode("utf-8")
+
+    def _expand_dollars(self, m: str) -> str:
+        """
+        This method is used to expand numerical dollar values into spoken words.
+        """
+        match = m.group(1)
+        parts = match.split(".")
+        if len(parts) > 2:
+            return match + " dollars"  # Unexpected format
+
+        dollars = int(parts[0]) if parts[0] else 0
+        cents = int(parts[1]) if len(parts) > 1 and parts[1] else 0
+        if dollars and cents:
+            dollar_unit = "dollar" if dollars == 1 else "dollars"
+            cent_unit = "cent" if cents == 1 else "cents"
+            return "%s %s, %s %s" % (dollars, dollar_unit, cents, cent_unit)
+        elif dollars:
+            dollar_unit = "dollar" if dollars == 1 else "dollars"
+            return "%s %s" % (dollars, dollar_unit)
+        elif cents:
+            cent_unit = "cent" if cents == 1 else "cents"
+            return "%s %s" % (cents, cent_unit)
+        else:
+            return "zero dollars"
+
+    def _remove_commas(self, m: str) -> str:
+        """
+        This method is used to remove commas from sentences.
+        """
+        return m.group(1).replace(",", "")
+
+    def _expand_decimal_point(self, m: str) -> str:
+        """
+        This method is used to expand '.' into spoken word ' point '.
+        """
+        return m.group(1).replace(".", " point ")
+
+    def _expand_ordinal(self, num: str) -> str:
+        """
+        This method is used to expand ordinals such as '1st', '2nd' into spoken words.
+        """
+        ordinal_suffixes = {1: "st", 2: "nd", 3: "rd"}
+
+        num = int(num.group(0)[:-2])
+        if 10 <= num % 100 and num % 100 <= 20:
+            suffix = "th"
+        else:
+            suffix = ordinal_suffixes.get(num % 10, "th")
+        return self.number_to_words(num) + suffix
+
+    def _expand_number(self, m: str) -> str:
+        """
+        This method acts as a preprocessing step for numbers between 1000 and 3000 (same as the original repository,
+        link :
+        https://github.com/neonbjb/tortoise-tts/blob/4003544b6ff4b68c09856e04d3eff9da26d023c2/tortoise/utils/tokenizer.py#L86)
+        """
+        num = int(m.group(0))
+
+        if num > 1000 and num < 3000:
+            if num == 2000:
+                return "two thousand"
+            elif num > 2000 and num < 2010:
+                return "two thousand " + self.number_to_words(num % 100)
+            elif num % 100 == 0:
+                return self.number_to_words(num // 100) + " hundred"
+            else:
+                return self.number_to_words(num)
+        else:
+            return self.number_to_words(num)
+
+    def normalize_numbers(self, text: str) -> str:
+        """
+        This method is used to normalize numbers within a text such as converting the numbers to words, removing
+        commas, etc.
+        """
+        text = re.sub(re.compile(r"([0-9][0-9\,]+[0-9])"), self._remove_commas, text)
+        text = re.sub(re.compile(r"£([0-9\,]*[0-9]+)"), r"\1 pounds", text)
+        text = re.sub(re.compile(r"\$([0-9\.\,]*[0-9]+)"), self._expand_dollars, text)
+        text = re.sub(re.compile(r"([0-9]+\.[0-9]+)"), self._expand_decimal_point, text)
+        text = re.sub(re.compile(r"[0-9]+(st|nd|rd|th)"), self._expand_ordinal, text)
+        text = re.sub(re.compile(r"[0-9]+"), self._expand_number, text)
+        return text
+
+    def expand_abbreviations(self, text: str) -> str:
+        """
+        Expands the abbreviate words.
+        """
+        for regex, replacement in self._abbreviations:
+            text = re.sub(regex, replacement, text)
+        return text
+
+    def collapse_whitespace(self, text: str) -> str:
+        """
+        Removes multiple whitespaces
+        """
+        return re.sub(re.compile(r"\s+"), " ", text)
+
+    def __call__(self, text):
+        """
+        Converts text to ascii, numbers / number-like quantities to their spelt-out counterparts and expands
+        abbreviations
+        """
+
+        text = self.convert_to_ascii(text)
+        text = text.lower()
+        text = self.normalize_numbers(text)
+        text = self.expand_abbreviations(text)
+        text = self.collapse_whitespace(text)
+        text = text.replace('"', "")
+
+        return text

env-llmeval/lib/python3.10/site-packages/transformers/models/umt5/__init__.py

@@ -0,0 +1,60 @@
+# Copyright 2023 The HuggingFace Team. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from typing import TYPE_CHECKING
+
+from ...utils import OptionalDependencyNotAvailable, _LazyModule, is_torch_available
+
+
+_import_structure = {"configuration_umt5": ["UMT5Config", "UMT5OnnxConfig"]}
+
+
+try:
+    if not is_torch_available():
+        raise OptionalDependencyNotAvailable()
+except OptionalDependencyNotAvailable:
+    pass
+else:
+    _import_structure["modeling_umt5"] = [
+        "UMT5EncoderModel",
+        "UMT5ForConditionalGeneration",
+        "UMT5ForQuestionAnswering",
+        "UMT5ForSequenceClassification",
+        "UMT5ForTokenClassification",
+        "UMT5Model",
+        "UMT5PreTrainedModel",
+    ]
+
+if TYPE_CHECKING:
+    from .configuration_umt5 import UMT5Config, UMT5OnnxConfig
+
+    try:
+        if not is_torch_available():
+            raise OptionalDependencyNotAvailable()
+    except OptionalDependencyNotAvailable:
+        pass
+    else:
+        from .modeling_umt5 import (
+            UMT5EncoderModel,
+            UMT5ForConditionalGeneration,
+            UMT5ForQuestionAnswering,
+            UMT5ForSequenceClassification,
+            UMT5ForTokenClassification,
+            UMT5Model,
+            UMT5PreTrainedModel,
+        )
+else:
+    import sys
+
+    sys.modules[__name__] = _LazyModule(__name__, globals()["__file__"], _import_structure, module_spec=__spec__)

env-llmeval/lib/python3.10/site-packages/transformers/models/umt5/configuration_umt5.py

@@ -0,0 +1,177 @@
+# coding=utf-8
+# Copyright 2023, The T5 Authors and HuggingFace Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+""" UMT5 model configuration"""
+from typing import Mapping
+
+from ...configuration_utils import PretrainedConfig
+from ...onnx import OnnxSeq2SeqConfigWithPast
+from ...utils import logging
+
+
+logger = logging.get_logger(__name__)
+
+UMT5_PRETRAINED_CONFIG_ARCHIVE_MAP = {
+    "google/umt5-small": "https://huggingface.co/google/umt5-small/resolve/main/config.json",
+    # See all umt5 models at https://huggingface.co/models?filter=umt5
+}
+
+
+class UMT5Config(PretrainedConfig):
+    r"""
+    This is the configuration class to store the configuration of a [`UMT5Model`]. It is used to instantiate a UMT5
+    model according to the specified arguments, defining the model architecture. Instantiating a configuration with the
+    defaults will yield a similar configuration to that of the UMT5
+    [google/umt5-small](https://huggingface.co/google/umt5-small) architecture.
+
+    Configuration objects inherit from [`PretrainedConfig`] and can be used to control the model outputs. Read the
+    documentation from [`PretrainedConfig`] for more information.
+
+    Arguments:
+        vocab_size (`int`, *optional*, defaults to 250112):
+            Vocabulary size of the UMT5 model. Defines the number of different tokens that can be represented by the
+            `inputs_ids` passed when calling [`UMT5Model`] or [`TFUMT5Model`].
+        d_model (`int`, *optional*, defaults to 512):
+            Size of the encoder layers and the pooler layer.
+        d_kv (`int`, *optional*, defaults to 64):
+            Size of the key, query, value projections per attention head. `d_kv` has to be equal to `d_model //
+            num_heads`.
+        d_ff (`int`, *optional*, defaults to 1024):
+            Size of the intermediate feed forward layer in each `UMT5Block`.
+        num_layers (`int`, *optional*, defaults to 8):
+            Number of hidden layers in the Transformer encoder.
+        num_decoder_layers (`int`, *optional*):
+            Number of hidden layers in the Transformer decoder. Will use the same value as `num_layers` if not set.
+        num_heads (`int`, *optional*, defaults to 6):
+            Number of attention heads for each attention layer in the Transformer encoder.
+        relative_attention_num_buckets (`int`, *optional*, defaults to 32):
+            The number of buckets to use for each attention layer.
+        relative_attention_max_distance (`int`, *optional*, defaults to 128):
+            The maximum distance of the longer sequences for the bucket separation.
+        dropout_rate (`float`, *optional*, defaults to 0.1):
+            The ratio for all dropout layers.
+        classifier_dropout (`float`, *optional*, defaults to 0.0):
+            The dropout ratio for classifier.
+        layer_norm_eps (`float`, *optional*, defaults to 1e-6):
+            The epsilon used by the layer normalization layers.
+        initializer_factor (`float`, *optional*, defaults to 1):
+            A factor for initializing all weight matrices (should be kept to 1, used internally for initialization
+            testing).
+        feed_forward_proj (`string`, *optional*, defaults to `"gated-gelu"`):
+            Type of feed forward layer to be used. Should be one of `"relu"` or `"gated-gelu"`.
+        use_cache (`bool`, *optional*, defaults to `True`):
+            Whether or not the model should return the last key/values attentions (not used by all models).
+    """
+
+    model_type = "umt5"
+    keys_to_ignore_at_inference = ["past_key_values"]
+    attribute_map = {"hidden_size": "d_model", "num_attention_heads": "num_heads", "num_hidden_layers": "num_layers"}
+
+    def __init__(
+        self,
+        vocab_size=250112,
+        d_model=512,
+        d_kv=64,
+        d_ff=1024,
+        num_layers=8,
+        num_decoder_layers=None,
+        num_heads=6,
+        relative_attention_num_buckets=32,
+        relative_attention_max_distance=128,
+        dropout_rate=0.1,
+        layer_norm_epsilon=1e-6,
+        initializer_factor=1.0,
+        feed_forward_proj="gated-gelu",
+        is_encoder_decoder=True,
+        use_cache=True,
+        tokenizer_class="T5Tokenizer",
+        tie_word_embeddings=True,
+        pad_token_id=0,
+        eos_token_id=1,
+        decoder_start_token_id=0,
+        classifier_dropout=0.0,
+        **kwargs,
+    ):
+        self.vocab_size = vocab_size
+        self.d_model = d_model
+        self.d_kv = d_kv
+        self.d_ff = d_ff
+        self.num_layers = num_layers
+        self.num_decoder_layers = (
+            num_decoder_layers if num_decoder_layers is not None else self.num_layers
+        )  # default = symmetry
+        self.num_heads = num_heads
+        self.relative_attention_num_buckets = relative_attention_num_buckets
+        self.relative_attention_max_distance = relative_attention_max_distance
+        self.dropout_rate = dropout_rate
+        self.classifier_dropout = classifier_dropout
+        self.layer_norm_epsilon = layer_norm_epsilon
+        self.initializer_factor = initializer_factor
+        self.feed_forward_proj = feed_forward_proj
+        self.use_cache = use_cache
+
+        act_info = self.feed_forward_proj.split("-")
+        self.dense_act_fn = act_info[-1]
+        self.is_gated_act = act_info[0] == "gated"
+
+        if len(act_info) > 1 and act_info[0] != "gated" or len(act_info) > 2:
+            raise ValueError(
+                f"`feed_forward_proj`: {feed_forward_proj} is not a valid activation function of the dense layer. "
+                "Please make sure `feed_forward_proj` is of the format `gated-{ACT_FN}` or `{ACT_FN}`, e.g. "
+                "'gated-gelu' or 'relu'"
+            )
+
+        if feed_forward_proj == "gated-gelu":
+            self.dense_act_fn = "gelu_new"
+
+        super().__init__(
+            is_encoder_decoder=is_encoder_decoder,
+            tokenizer_class=tokenizer_class,
+            tie_word_embeddings=tie_word_embeddings,
+            pad_token_id=pad_token_id,
+            eos_token_id=eos_token_id,
+            decoder_start_token_id=decoder_start_token_id,
+            **kwargs,
+        )
+
+
+class UMT5OnnxConfig(OnnxSeq2SeqConfigWithPast):
+    @property
+    # Copied from transformers.models.t5.configuration_t5.T5OnnxConfig.inputs
+    def inputs(self) -> Mapping[str, Mapping[int, str]]:
+        common_inputs = {
+            "input_ids": {0: "batch", 1: "encoder_sequence"},
+            "attention_mask": {0: "batch", 1: "encoder_sequence"},
+        }
+        if self.use_past:
+            common_inputs["attention_mask"][1] = "past_encoder_sequence + sequence"
+            common_inputs["decoder_input_ids"] = {0: "batch"}
+            common_inputs["decoder_attention_mask"] = {0: "batch", 1: "past_decoder_sequence + sequence"}
+        else:
+            common_inputs["decoder_input_ids"] = {0: "batch", 1: "decoder_sequence"}
+            common_inputs["decoder_attention_mask"] = {0: "batch", 1: "decoder_sequence"}
+
+        if self.use_past:
+            self.fill_with_past_key_values_(common_inputs, direction="inputs")
+
+        return common_inputs
+
+    @property
+    # Copied from transformers.models.t5.configuration_t5.T5OnnxConfig.default_onnx_opset
+    def default_onnx_opset(self) -> int:
+        return 13
+
+    @property
+    def atol_for_validation(self) -> float:
+        return 5e-4

env-llmeval/lib/python3.10/site-packages/transformers/models/umt5/convert_umt5_checkpoint_to_pytorch.py

@@ -0,0 +1,274 @@
+# coding=utf-8
+# Copyright 2023 Google LLC and HuggingFace Inc. team.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""
+Convert T5X checkpoint to PyTorch
+
+Steps:
+- Install gsutil according to https://cloud.google.com/storage/docs/gsutil_install
+- Get a T5X checkpoint at https://github.com/google-research/t5x/blob/main/docs/models.md#t5-11-checkpoints Example:
+    `gsutil -m cp -r gs://t5-data/pretrained_models/t5x/t5_1_1_small $HOME/`
+- Create or download a corresponding config for the downloaded model. E.g. for T5 v1.1 small, you can use
+    https://huggingface.co/google/t5-v1_1-small/blob/main/config.json
+- Convert:
+    ```
+    python3 convert_t5x_checkpoint_to_pytorch.py --t5x_checkpoint_path=$HOME/t5_1_1_small --config_file=config.json\
+      --pytorch_dump_path=$HOME/t5_1_1_small_pt
+    ```
+"""
+
+import argparse
+import collections
+
+import numpy as np
+import torch
+from flax import traverse_util
+from t5x import checkpoints
+
+from transformers import MT5Config, UMT5EncoderModel, UMT5ForConditionalGeneration
+from transformers.utils import logging
+
+
+logging.set_verbosity_info()
+
+
+def t5x_relpos_bias_lookup(params, i, prefix):
+    """Returns the Relative Position Bias parameters of a layer. Does not transpose."""
+    return params[f"{prefix}/{prefix}/relpos_bias/rel_embedding"][:, i, :]
+
+
+def t5x_attention_lookup(params, i, prefix, layer_name="attention"):
+    """Returns the KOQV parameters of (self-)attention. Does not transpose."""
+    k_tmp = k_tmp = np.ascontiguousarray(params[f"{prefix}/{prefix}/{layer_name}/key/kernel"][:, i, :, :])
+    k = k_tmp.reshape(k_tmp.shape[0], k_tmp.shape[1] * k_tmp.shape[2])
+    o_tmp = np.ascontiguousarray(params[f"{prefix}/{prefix}/{layer_name}/out/kernel"][:, i, :, :])
+    o = o_tmp.reshape(o_tmp.shape[0] * o_tmp.shape[1], o_tmp.shape[2])
+    q_tmp = np.ascontiguousarray(params[f"{prefix}/{prefix}/{layer_name}/query/kernel"][:, i, :, :])
+    q = q_tmp.reshape(q_tmp.shape[0], q_tmp.shape[1] * q_tmp.shape[2])
+    v_tmp = np.ascontiguousarray(params[f"{prefix}/{prefix}/{layer_name}/value/kernel"][:, i, :, :])
+    v = v_tmp.reshape(v_tmp.shape[0], v_tmp.shape[1] * v_tmp.shape[2])
+    return k, o, q, v
+
+
+def t5x_mlp_lookup(params, i, prefix, split_mlp_wi=False):
+    """Returns the MLP parameters of a layer. Does not transpose."""
+    if split_mlp_wi:
+        wi_0 = params[f"{prefix}/{prefix}/mlp/wi_0/kernel"][:, i, :]
+        wi_1 = params[f"{prefix}/{prefix}/mlp/wi_1/kernel"][:, i, :]
+        wi = (wi_0, wi_1)
+    else:
+        wi = params[f"{prefix}/{prefix}/mlp/wi/kernel"][:, i, :]
+
+    wo = params[f"{prefix}/{prefix}/mlp/wo/kernel"][:, i, :]
+    return wi, wo
+
+
+def t5x_layer_norm_lookup(params, i, prefix, layer_name):
+    """Returns the layer norm param of a layer."""
+    return params[f"{prefix}/{prefix}/{layer_name}/scale"][:, i]
+
+
+def convert_t5x_to_pytorch(
+    variables: dict, *, num_layers: int, is_encoder_only: bool, scalable_attention: bool = False
+):
+    """Converts the parameters from T5X-Flax to Transformers-PyTorch."""
+    old = traverse_util.flatten_dict(variables["target"])
+    old = {"/".join(k): v for k, v in old.items()}
+
+    # v1.1 models have a gated GeLU with wi_0 and wi_1 instead of wi
+    split_mlp_wi = "encoder/encoder/mlp/wi_0/kernel" in old
+    print("Split MLP:", split_mlp_wi)
+
+    new = collections.OrderedDict()
+
+    # Shared embeddings.
+    new["shared.weight"] = old["token_embedder/embedding"]
+
+    # Encoder.
+    for i in range(num_layers):
+        # Block i, layer 0 (Self Attention).
+        layer_norm = t5x_layer_norm_lookup(old, i, "encoder", "pre_attention_layer_norm")
+        k, o, q, v = t5x_attention_lookup(old, i, "encoder", "attention")
+        new[f"encoder.block.{i}.layer.0.layer_norm.weight"] = layer_norm
+        new[f"encoder.block.{i}.layer.0.SelfAttention.k.weight"] = k.T
+        new[f"encoder.block.{i}.layer.0.SelfAttention.o.weight"] = o.T
+        new[f"encoder.block.{i}.layer.0.SelfAttention.q.weight"] = q.T
+        new[f"encoder.block.{i}.layer.0.SelfAttention.v.weight"] = v.T
+
+        # Block i, layer 1 (MLP).
+        layer_norm = t5x_layer_norm_lookup(old, i, "encoder", "pre_mlp_layer_norm")
+        wi, wo = t5x_mlp_lookup(old, i, "encoder", split_mlp_wi)
+        new[f"encoder.block.{i}.layer.1.layer_norm.weight"] = layer_norm
+        if split_mlp_wi:
+            new[f"encoder.block.{i}.layer.1.DenseReluDense.wi_0.weight"] = wi[0].T
+            new[f"encoder.block.{i}.layer.1.DenseReluDense.wi_1.weight"] = wi[1].T
+        else:
+            new[f"encoder.block.{i}.layer.1.DenseReluDense.wi.weight"] = wi.T
+        new[f"encoder.block.{i}.layer.1.DenseReluDense.wo.weight"] = wo.T
+        if scalable_attention:
+            # convert the rel_embedding of each layer
+            new[f"encoder.block.{i}.layer.0.SelfAttention.relative_attention_bias.weight"] = t5x_relpos_bias_lookup(
+                old, i, "encoder"
+            ).T
+
+    new["encoder.final_layer_norm.weight"] = old["encoder/encoder_norm/scale"]
+
+    if not scalable_attention:
+        new["encoder.block.0.layer.0.SelfAttention.relative_attention_bias.weight"] = t5x_relpos_bias_lookup(
+            old, 0, "encoder"
+        ).T
+        new["decoder.block.0.layer.0.SelfAttention.relative_attention_bias.weight"] = t5x_relpos_bias_lookup(
+            old, 0, "decoder"
+        ).T
+
+    if not is_encoder_only:
+        # Decoder.
+        for i in range(num_layers):
+            # Block i, layer 0 (Self Attention).
+            layer_norm = t5x_layer_norm_lookup(old, i, "decoder", "pre_self_attention_layer_norm")
+            k, o, q, v = t5x_attention_lookup(old, i, "decoder", "self_attention")
+            new[f"decoder.block.{i}.layer.0.layer_norm.weight"] = layer_norm
+            new[f"decoder.block.{i}.layer.0.SelfAttention.k.weight"] = k.T
+            new[f"decoder.block.{i}.layer.0.SelfAttention.o.weight"] = o.T
+            new[f"decoder.block.{i}.layer.0.SelfAttention.q.weight"] = q.T
+            new[f"decoder.block.{i}.layer.0.SelfAttention.v.weight"] = v.T
+
+            # Block i, layer 1 (Cross Attention).
+            layer_norm = t5x_layer_norm_lookup(old, i, "decoder", "pre_cross_attention_layer_norm")
+            k, o, q, v = t5x_attention_lookup(old, i, "decoder", "encoder_decoder_attention")
+            new[f"decoder.block.{i}.layer.1.layer_norm.weight"] = layer_norm
+            new[f"decoder.block.{i}.layer.1.EncDecAttention.k.weight"] = k.T
+            new[f"decoder.block.{i}.layer.1.EncDecAttention.o.weight"] = o.T
+            new[f"decoder.block.{i}.layer.1.EncDecAttention.q.weight"] = q.T
+            new[f"decoder.block.{i}.layer.1.EncDecAttention.v.weight"] = v.T
+
+            # Block i, layer 2 (MLP).
+            layer_norm = t5x_layer_norm_lookup(old, i, "decoder", "pre_mlp_layer_norm")
+            wi, wo = t5x_mlp_lookup(old, i, "decoder", split_mlp_wi)
+            new[f"decoder.block.{i}.layer.2.layer_norm.weight"] = layer_norm
+            if split_mlp_wi:
+                new[f"decoder.block.{i}.layer.2.DenseReluDense.wi_0.weight"] = wi[0].T
+                new[f"decoder.block.{i}.layer.2.DenseReluDense.wi_1.weight"] = wi[1].T
+            else:
+                new[f"encoder.block.{i}.layer.2.DenseReluDense.wi.weight"] = wi.T
+            new[f"decoder.block.{i}.layer.2.DenseReluDense.wo.weight"] = wo.T
+
+            if scalable_attention:
+                # convert the rel_embedding of each layer
+                new[
+                    f"decoder.block.{i}.layer.0.SelfAttention.relative_attention_bias.weight"
+                ] = t5x_relpos_bias_lookup(old, i, "decoder").T
+
+        new["decoder.final_layer_norm.weight"] = old["decoder/decoder_norm/scale"]
+
+        # LM Head (only in v1.1 checkpoints, in v1.0 embeddings are used instead)
+        if "decoder/logits_dense/kernel" in old:
+            new["lm_head.weight"] = old["decoder/logits_dense/kernel"].T
+
+    return new
+
+
+def make_state_dict(converted_params, is_encoder_only: bool):
+    """Prepares a state dict for the PyTorch model."""
+    # Make a state dict with torch tensors.
+    state_dict = collections.OrderedDict([(k, torch.from_numpy(v.copy())) for (k, v) in converted_params.items()])
+
+    # Add what is missing.
+    if "encoder.embed_tokens.weight" not in state_dict:
+        state_dict["encoder.embed_tokens.weight"] = state_dict["shared.weight"]
+
+    if not is_encoder_only:
+        if "decoder.embed_tokens.weight" not in state_dict:
+            state_dict["decoder.embed_tokens.weight"] = state_dict["shared.weight"]
+
+        if "lm_head.weight" not in state_dict:  # For old 1.0 models.
+            print("Using shared word embeddings as lm_head.")
+            state_dict["lm_head.weight"] = state_dict["shared.weight"]
+
+    return state_dict
+
+
+def load_t5x_weights_in_t5(model, config, t5x_checkpoint_path, is_encoder_only, scalable_attention):
+    """Replaces the params in model witht the T5X converted params."""
+    variables = checkpoints.load_t5x_checkpoint(t5x_checkpoint_path)
+    converted = convert_t5x_to_pytorch(
+        variables, num_layers=config.num_layers, is_encoder_only=is_encoder_only, scalable_attention=scalable_attention
+    )
+    state_dict = make_state_dict(converted, is_encoder_only)
+    model.load_state_dict(state_dict, strict=True)
+
+
+def convert_t5x_checkpoint_to_pytorch(
+    t5x_checkpoint_path,
+    config_file,
+    pytorch_dump_path,
+    is_encoder_only: bool = False,
+    scalable_attention: bool = False,
+):
+    """Loads the config and model, converts the T5X checkpoint, and saves a PyTorch checkpoint."""
+    # Initialise PyTorch model
+    config = MT5Config.from_json_file(config_file)
+    print(f"Building PyTorch model from configuration: {config}")
+    # Non-v1.1 checkpoints could also use T5Model, but this works for all.
+    # The v1.0 checkpoints will simply have an LM head that is the word embeddings.
+    if is_encoder_only:
+        model = UMT5EncoderModel(config)
+    else:
+        model = UMT5ForConditionalGeneration(config)
+
+    # Load weights from tf checkpoint
+    load_t5x_weights_in_t5(model, config, t5x_checkpoint_path, is_encoder_only, scalable_attention)
+
+    # Save pytorch-model
+    print(f"Save PyTorch model to {pytorch_dump_path}")
+    model.save_pretrained(pytorch_dump_path)
+
+    # Verify that we can load the checkpoint.
+    model.from_pretrained(pytorch_dump_path)
+    print("Done")
+
+
+if __name__ == "__main__":
+    parser = argparse.ArgumentParser(description="Converts a native T5X checkpoint into a PyTorch checkpoint.")
+    # Required parameters
+    parser.add_argument(
+        "--t5x_checkpoint_path", default=None, type=str, required=True, help="Path to the T5X checkpoint."
+    )
+    parser.add_argument(
+        "--config_file",
+        default=None,
+        type=str,
+        required=True,
+        help="The config json file corresponding to the pre-trained T5 model.\nThis specifies the model architecture.",
+    )
+    parser.add_argument(
+        "--pytorch_dump_path", default=None, type=str, required=True, help="Path to the output PyTorch model."
+    )
+    parser.add_argument(
+        "--is_encoder_only", action="store_true", help="Check if the model is encoder-decoder model", default=False
+    )
+    parser.add_argument(
+        "--scalable_attention",
+        action="store_true",
+        help="Whether the model uses scaled attention (umt5 model)",
+        default=False,
+    )
+    args = parser.parse_args()
+    convert_t5x_checkpoint_to_pytorch(
+        args.t5x_checkpoint_path,
+        args.config_file,
+        args.pytorch_dump_path,
+        args.is_encoder_only,
+        args.scalable_attention,
+    )

env-llmeval/lib/python3.10/site-packages/transformers/models/umt5/modeling_umt5.py

@@ -0,0 +1,1857 @@
+# coding=utf-8
+# Copyright 2023 Mesh TensorFlow authors, T5 Authors and HuggingFace Inc. team.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+""" PyTorch UMT5 model."""
+
+import copy
+import math
+from typing import List, Optional, Tuple, Union
+
+import torch
+from torch import nn
+from torch.nn import BCEWithLogitsLoss, CrossEntropyLoss, MSELoss
+
+from ...activations import ACT2FN
+from ...modeling_outputs import (
+    BaseModelOutput,
+    BaseModelOutputWithPastAndCrossAttentions,
+    Seq2SeqLMOutput,
+    Seq2SeqModelOutput,
+    Seq2SeqQuestionAnsweringModelOutput,
+    Seq2SeqSequenceClassifierOutput,
+    TokenClassifierOutput,
+)
+from ...modeling_utils import PreTrainedModel
+from ...utils import (
+    DUMMY_INPUTS,
+    DUMMY_MASK,
+    add_start_docstrings,
+    add_start_docstrings_to_model_forward,
+    is_torch_fx_proxy,
+    logging,
+    replace_return_docstrings,
+)
+from .configuration_umt5 import UMT5Config
+
+
+logger = logging.get_logger(__name__)
+
+_CONFIG_FOR_DOC = "UMT5Config"
+_CHECKPOINT_FOR_DOC = "google/umt5-small"
+
+
+# Copied from transformers.models.t5.modeling_t5.T5LayerNorm with T5->UMT5
+class UMT5LayerNorm(nn.Module):
+    def __init__(self, hidden_size, eps=1e-6):
+        """
+        Construct a layernorm module in the UMT5 style. No bias and no subtraction of mean.
+        """
+        super().__init__()
+        self.weight = nn.Parameter(torch.ones(hidden_size))
+        self.variance_epsilon = eps
+
+    def forward(self, hidden_states):
+        # UMT5 uses a layer_norm which only scales and doesn't shift, which is also known as Root Mean
+        # Square Layer Normalization https://arxiv.org/abs/1910.07467 thus varience is calculated
+        # w/o mean and there is no bias. Additionally we want to make sure that the accumulation for
+        # half-precision inputs is done in fp32
+
+        variance = hidden_states.to(torch.float32).pow(2).mean(-1, keepdim=True)
+        hidden_states = hidden_states * torch.rsqrt(variance + self.variance_epsilon)
+
+        # convert into half-precision if necessary
+        if self.weight.dtype in [torch.float16, torch.bfloat16]:
+            hidden_states = hidden_states.to(self.weight.dtype)
+
+        return self.weight * hidden_states
+
+
+# Copied from transformers.models.t5.modeling_t5.T5DenseActDense with T5->UMT5
+class UMT5DenseActDense(nn.Module):
+    def __init__(self, config: UMT5Config):
+        super().__init__()
+        self.wi = nn.Linear(config.d_model, config.d_ff, bias=False)
+        self.wo = nn.Linear(config.d_ff, config.d_model, bias=False)
+        self.dropout = nn.Dropout(config.dropout_rate)
+        self.act = ACT2FN[config.dense_act_fn]
+
+    def forward(self, hidden_states):
+        hidden_states = self.wi(hidden_states)
+        hidden_states = self.act(hidden_states)
+        hidden_states = self.dropout(hidden_states)
+        if (
+            isinstance(self.wo.weight, torch.Tensor)
+            and hidden_states.dtype != self.wo.weight.dtype
+            and self.wo.weight.dtype != torch.int8
+        ):
+            hidden_states = hidden_states.to(self.wo.weight.dtype)
+        hidden_states = self.wo(hidden_states)
+        return hidden_states
+
+
+# Copied from transformers.models.t5.modeling_t5.T5DenseGatedActDense with T5->UMT5
+class UMT5DenseGatedActDense(nn.Module):
+    def __init__(self, config: UMT5Config):
+        super().__init__()
+        self.wi_0 = nn.Linear(config.d_model, config.d_ff, bias=False)
+        self.wi_1 = nn.Linear(config.d_model, config.d_ff, bias=False)
+        self.wo = nn.Linear(config.d_ff, config.d_model, bias=False)
+        self.dropout = nn.Dropout(config.dropout_rate)
+        self.act = ACT2FN[config.dense_act_fn]
+
+    def forward(self, hidden_states):
+        hidden_gelu = self.act(self.wi_0(hidden_states))
+        hidden_linear = self.wi_1(hidden_states)
+        hidden_states = hidden_gelu * hidden_linear
+        hidden_states = self.dropout(hidden_states)
+
+        # To make 8bit quantization work for google/flan-t5-xxl, self.wo is kept in float32.
+        # See https://github.com/huggingface/transformers/issues/20287
+        # we also make sure the weights are not in `int8` in case users will force `_keep_in_fp32_modules` to be `None``
+        if (
+            isinstance(self.wo.weight, torch.Tensor)
+            and hidden_states.dtype != self.wo.weight.dtype
+            and self.wo.weight.dtype != torch.int8
+        ):
+            hidden_states = hidden_states.to(self.wo.weight.dtype)
+
+        hidden_states = self.wo(hidden_states)
+        return hidden_states
+
+
+# Copied from transformers.models.t5.modeling_t5.T5LayerFF with T5->UMT5
+class UMT5LayerFF(nn.Module):
+    def __init__(self, config: UMT5Config):
+        super().__init__()
+        if config.is_gated_act:
+            self.DenseReluDense = UMT5DenseGatedActDense(config)
+        else:
+            self.DenseReluDense = UMT5DenseActDense(config)
+
+        self.layer_norm = UMT5LayerNorm(config.d_model, eps=config.layer_norm_epsilon)
+        self.dropout = nn.Dropout(config.dropout_rate)
+
+    def forward(self, hidden_states):
+        forwarded_states = self.layer_norm(hidden_states)
+        forwarded_states = self.DenseReluDense(forwarded_states)
+        hidden_states = hidden_states + self.dropout(forwarded_states)
+        return hidden_states
+
+
+class UMT5Attention(nn.Module):
+    """
+    T5's attention using relative_attention_bias.
+    """
+
+    def __init__(self, config, has_relative_attention_bias=False):
+        super().__init__()
+        self.is_decoder = config.is_decoder
+        self.has_relative_attention_bias = has_relative_attention_bias
+        self.relative_attention_num_buckets = config.relative_attention_num_buckets
+        self.relative_attention_max_distance = config.relative_attention_max_distance
+        self.d_model = config.d_model
+        self.key_value_proj_dim = config.d_kv
+        self.n_heads = config.num_heads
+        self.dropout = config.dropout_rate
+        self.inner_dim = self.n_heads * self.key_value_proj_dim
+
+        # Mesh TensorFlow initialization to avoid scaling before softmax
+        self.q = nn.Linear(self.d_model, self.inner_dim, bias=False)
+        self.k = nn.Linear(self.d_model, self.inner_dim, bias=False)
+        self.v = nn.Linear(self.d_model, self.inner_dim, bias=False)
+        self.o = nn.Linear(self.inner_dim, self.d_model, bias=False)
+
+        if self.has_relative_attention_bias:
+            self.relative_attention_bias = nn.Embedding(self.relative_attention_num_buckets, self.n_heads)
+        self.pruned_heads = set()
+
+    def _shape(self, projection: torch.Tensor) -> torch.Tensor:
+        new_projection_shape = projection.size()[:-1] + (self.n_heads, self.key_value_proj_dim)
+        # move heads to 2nd position (B, T, H * D) -> (B, T, H, D) -> (B, H, T, D)
+        new_projection = projection.view(new_projection_shape).permute(0, 2, 1, 3)
+        return new_projection
+
+    def _relative_position_bucket(self, relative_position):
+        """
+        Adapted from Mesh Tensorflow:
+        https://github.com/tensorflow/mesh/blob/0cb87fe07da627bf0b7e60475d59f95ed6b5be3d/mesh_tensorflow/transformer/transformer_layers.py#L593
+
+        Translate relative position to a bucket number for relative attention. The relative position is defined as
+        memory_position - query_position, i.e. the distance in tokens from the attending position to the attended-to
+        position. If bidirectional=False, then positive relative positions are invalid. We use smaller buckets for
+        small absolute relative_position and larger buckets for larger absolute relative_positions. All relative
+        positions >=max_distance map to the same bucket. All relative positions <=-max_distance map to the same bucket.
+        This should allow for more graceful generalization to longer sequences than the model has been trained on
+
+        Args:
+            relative_position: an int32 Tensor
+            bidirectional: a boolean - whether the attention is bidirectional
+            num_buckets: an integer
+            max_distance: an integer
+
+        Returns:
+            a Tensor with the same shape as relative_position, containing int32 values in the range [0, num_buckets)
+        """
+        relative_buckets = 0
+        num_buckets = self.relative_attention_num_buckets
+        max_distance = self.relative_attention_max_distance
+        if not self.is_decoder:
+            num_buckets //= 2
+            relative_buckets += (relative_position > 0).to(torch.long) * num_buckets
+            relative_position = torch.abs(relative_position)
+        else:
+            relative_position = -torch.min(relative_position, torch.zeros_like(relative_position))
+        # now relative_position is in the range [0, inf)
+
+        # half of the buckets are for exact increments in positions
+        max_exact = num_buckets // 2
+        is_small = relative_position < max_exact
+
+        # The other half of the buckets are for logarithmically bigger bins in positions up to max_distance
+        log_ratio = torch.log(relative_position.float() / max_exact) / math.log(max_distance / max_exact)
+        log_ratio = log_ratio * (num_buckets - max_exact)
+        relative_position_if_large = max_exact + log_ratio.to(torch.long)
+        relative_position_if_large = torch.min(
+            relative_position_if_large, torch.full_like(relative_position_if_large, num_buckets - 1)
+        )
+
+        relative_buckets += torch.where(is_small, relative_position, relative_position_if_large)
+        return relative_buckets
+
+    def compute_bias(self, query_length, key_length, device=None):
+        """Compute binned relative position bias"""
+        if device is None:
+            device = self.relative_attention_bias.weight.device
+        context_position = torch.arange(query_length, dtype=torch.long, device=device)[:, None]
+        memory_position = torch.arange(key_length, dtype=torch.long, device=device)[None, :]
+        relative_position = memory_position - context_position  # shape (query_length, key_length)
+        relative_position_bucket = self._relative_position_bucket(relative_position)
+        values = self.relative_attention_bias(relative_position_bucket)  # shape (query_length, key_length, num_heads)
+        values = values.permute([2, 0, 1]).unsqueeze(0)  # shape (1, num_heads, query_length, key_length)
+        return values
+
+    def forward(
+        self,
+        hidden_states: torch.Tensor,
+        encoder_hidden_states: Optional[torch.Tensor] = None,
+        past_key_value: Optional[Tuple[torch.Tensor]] = None,
+        attention_mask: Optional[torch.Tensor] = None,
+        layer_head_mask: Optional[torch.Tensor] = None,
+    ):
+        is_cross_attention = encoder_hidden_states is not None
+        batch_size, seq_length = hidden_states.shape[:2]
+
+        # use encoder_hidden_states if cross attention
+        current_states = encoder_hidden_states if encoder_hidden_states is not None else hidden_states
+        # checking that the `sequence_length` of the `past_key_value` is the same as the he provided
+        # `encoder_hidden_states` to support prefix tuning
+        if is_cross_attention and past_key_value and past_key_value[0].shape[2] == current_states.shape[1]:
+            # reuse k,v, cross_attentions
+            key_states = past_key_value[0]
+            value_states = past_key_value[1]
+        else:
+            key_states = self._shape(self.k(current_states))
+            value_states = self._shape(self.v(current_states))
+            if past_key_value is not None and not is_cross_attention:
+                # reuse k, v, self_attention
+                key_states = torch.cat([past_key_value[0], key_states], dim=2)
+                value_states = torch.cat([past_key_value[1], value_states], dim=2)
+
+        query_states = self._shape(self.q(hidden_states))
+        attention_scores = torch.matmul(query_states, key_states.transpose(-1, -2))
+
+        # compute positional bias
+        if self.has_relative_attention_bias:
+            query_length = seq_length
+            if past_key_value is not None:
+                query_length += past_key_value[0].shape[2]
+            position_bias = self.compute_bias(query_length, key_states.size(2), device=attention_scores.device)
+        else:
+            position_bias = torch.zeros(
+                (1, self.n_heads, seq_length, key_states.size(2)),
+                device=attention_scores.device,
+                dtype=attention_scores.dtype,
+                requires_grad=self.training,
+            )
+        if past_key_value is not None:
+            position_bias = position_bias[:, :, -hidden_states.size(1) :, :]
+        if attention_mask is not None:
+            position_bias = position_bias + attention_mask  # (batch_size, n_heads, seq_length, key_length)
+
+        if self.is_decoder:
+            # if cross_attention save Tuple(torch.Tensor, torch.Tensor) of all cross attention key/value_states.
+            # Further calls to cross_attention layer can then reuse all cross-attention
+            # key/value_states (first "if" case)
+            # if uni-directional self-attention (decoder) save Tuple(torch.Tensor, torch.Tensor) of
+            # all previous decoder key/value_states. Further calls to uni-directional self-attention
+            # can concat previous decoder key/value_states to current projected key/value_states (third "elif" case)
+            # if encoder bi-directional self-attention `past_key_value` is always `None`
+            past_key_value = (key_states, value_states)
+
+        attention_scores += position_bias
+        # (batch_size, n_heads, seq_length, key_length)
+        attn_weights = nn.functional.softmax(attention_scores.float(), dim=-1).type_as(attention_scores)
+        attn_weights = nn.functional.dropout(attn_weights, p=self.dropout, training=self.training)
+
+        # Mask heads if we want to
+        if layer_head_mask is not None:
+            attn_weights = attn_weights * layer_head_mask
+
+        #  attn_output = torch.bmm(attn_probs, value_states) ?
+        context_states = torch.matmul(attn_weights, value_states)
+        # attn_output = attn_output.view(bsz, self.num_heads, tgt_len, self.head_dim) ?
+        context_states = context_states.permute(0, 2, 1, 3).contiguous().view(batch_size, seq_length, -1)
+        attn_output = self.o(context_states)
+        return attn_output, attn_weights, past_key_value
+
+
+class UMT5LayerSelfAttention(nn.Module):
+    def __init__(self, config):
+        super().__init__()
+        self.SelfAttention = UMT5Attention(config, has_relative_attention_bias=True)
+        self.layer_norm = UMT5LayerNorm(config.d_model, eps=config.layer_norm_epsilon)
+        self.dropout = nn.Dropout(config.dropout_rate)
+
+    def forward(
+        self,
+        hidden_states,
+        attention_mask=None,
+        layer_head_mask=None,
+        past_key_value=None,
+    ):
+        normed_hidden_states = self.layer_norm(hidden_states)
+        attention_output = self.SelfAttention(
+            normed_hidden_states,
+            attention_mask=attention_mask,
+            layer_head_mask=layer_head_mask,
+            past_key_value=past_key_value,
+        )
+        hidden_states = hidden_states + self.dropout(attention_output[0])
+        outputs = (hidden_states,) + attention_output[1:]  # add attentions if we output them
+        return outputs
+
+
+class UMT5LayerCrossAttention(nn.Module):
+    def __init__(self, config):
+        super().__init__()
+        self.EncDecAttention = UMT5Attention(config, has_relative_attention_bias=False)
+        self.layer_norm = UMT5LayerNorm(config.d_model, eps=config.layer_norm_epsilon)
+        self.dropout = nn.Dropout(config.dropout_rate)
+
+    def forward(
+        self,
+        hidden_states,
+        encoder_hidden_states=None,
+        attention_mask=None,
+        layer_head_mask=None,
+        past_key_value=None,
+    ):
+        normed_hidden_states = self.layer_norm(hidden_states)
+        attention_output = self.EncDecAttention(
+            normed_hidden_states,
+            encoder_hidden_states=encoder_hidden_states,
+            attention_mask=attention_mask,
+            layer_head_mask=layer_head_mask,
+            past_key_value=past_key_value,
+        )
+        layer_output = hidden_states + self.dropout(attention_output[0])
+        outputs = (layer_output,) + attention_output[1:]  # add attentions if we output them
+        return outputs
+
+
+class UMT5Block(nn.Module):
+    def __init__(self, config):
+        super().__init__()
+        self.is_decoder = config.is_decoder
+        self.layer = nn.ModuleList()
+        self.layer.append(UMT5LayerSelfAttention(config))
+        if self.is_decoder:
+            self.layer.append(UMT5LayerCrossAttention(config))
+
+        self.layer.append(UMT5LayerFF(config))
+
+    def forward(
+        self,
+        hidden_states,
+        attention_mask=None,
+        encoder_hidden_states=None,
+        encoder_attention_mask=None,
+        layer_head_mask=None,
+        cross_attn_layer_head_mask=None,
+        past_key_value=None,
+        use_cache=False,
+        output_attentions=False,
+    ):
+        # Self Attention
+        # decoder uni-directional self-attention cached key/values tuple is at positions 1,2
+        self_attn_past_key_value = past_key_value[:2] if past_key_value is not None else None
+
+        hidden_states, self_attn_weights, present_key_value = self.layer[0](
+            hidden_states,
+            attention_mask=attention_mask,
+            layer_head_mask=layer_head_mask,
+            past_key_value=self_attn_past_key_value,
+        )
+
+        # clamp inf values to enable fp16 training
+        if hidden_states.dtype == torch.float16:
+            max_dtype = torch.finfo(hidden_states.dtype).max
+            clamp_value = torch.where(torch.isinf(hidden_states).any(), max_dtype - 1000, max_dtype)
+            hidden_states = torch.clamp(hidden_states, min=-clamp_value, max=clamp_value)
+
+        # Cross-Attention Block
+        cross_attn_present_key_value = None
+        cross_attn_weights = None
+        do_cross_attention = self.is_decoder and encoder_hidden_states is not None
+        if do_cross_attention:
+            # cross_attn cached key/values tuple is at positions 3,4 of present_key_value tuple
+            cross_attn_past_key_value = past_key_value[-2:] if past_key_value is not None else None
+            hidden_states, cross_attn_weights, cross_attn_present_key_value = self.layer[1](
+                hidden_states,
+                encoder_hidden_states=encoder_hidden_states,
+                attention_mask=encoder_attention_mask,
+                layer_head_mask=cross_attn_layer_head_mask,
+                past_key_value=cross_attn_past_key_value,
+            )
+            # clamp inf values to enable fp16 training
+            if hidden_states.dtype == torch.float16:
+                max_dtype = torch.finfo(hidden_states.dtype).max
+                clamp_value = torch.where(torch.isinf(hidden_states).any(), max_dtype - 1000, max_dtype)
+                hidden_states = torch.clamp(hidden_states, min=-clamp_value, max=clamp_value)
+
+            present_key_value += cross_attn_present_key_value
+
+        # Apply Feed Forward layer
+        hidden_states = self.layer[-1](hidden_states)
+
+        # clamp inf values to enable fp16 training
+        if hidden_states.dtype == torch.float16:
+            max_dtype = torch.finfo(hidden_states.dtype).max
+            clamp_value = torch.where(torch.isinf(hidden_states).any(), max_dtype - 1000, max_dtype)
+            hidden_states = torch.clamp(hidden_states, min=-clamp_value, max=clamp_value)
+
+        outputs = (
+            hidden_states,
+            present_key_value,
+        )
+
+        if output_attentions:
+            outputs += (self_attn_weights, cross_attn_weights)
+
+        return outputs
+
+
+# Copied from transformers.models.t5.modeling_t5.T5ClassificationHead with T5->UMT5
+class UMT5ClassificationHead(nn.Module):
+    """Head for sentence-level classification tasks."""
+
+    def __init__(self, config: UMT5Config):
+        super().__init__()
+        self.dense = nn.Linear(config.d_model, config.d_model)
+        self.dropout = nn.Dropout(p=config.classifier_dropout)
+        self.out_proj = nn.Linear(config.d_model, config.num_labels)
+
+    def forward(self, hidden_states: torch.Tensor) -> torch.Tensor:
+        hidden_states = self.dropout(hidden_states)
+        hidden_states = self.dense(hidden_states)
+        hidden_states = torch.tanh(hidden_states)
+        hidden_states = self.dropout(hidden_states)
+        hidden_states = self.out_proj(hidden_states)
+        return hidden_states
+
+
+class UMT5PreTrainedModel(PreTrainedModel):
+    """
+    An abstract class to handle weights initialization and a simple interface for downloading and loading pretrained
+    models.
+    """
+
+    config_class = UMT5Config
+    base_model_prefix = "transformer"
+    supports_gradient_checkpointing = True
+    _no_split_modules = ["UMT5Block"]
+    _keep_in_fp32_modules = ["wo"]
+
+    @property
+    def dummy_inputs(self):
+        input_ids = torch.tensor(DUMMY_INPUTS)
+        input_mask = torch.tensor(DUMMY_MASK)
+        dummy_inputs = {
+            "decoder_input_ids": input_ids,
+            "input_ids": input_ids,
+            "decoder_attention_mask": input_mask,
+        }
+        return dummy_inputs
+
+    def _init_weights(self, module):
+        """Initialize the weights"""
+        factor = self.config.initializer_factor  # Used for testing weights initialization
+        if isinstance(module, UMT5LayerNorm):
+            module.weight.data.fill_(factor * 1.0)
+        elif isinstance(
+            module,
+            (
+                UMT5Model,
+                UMT5ForConditionalGeneration,
+                UMT5EncoderModel,
+                UMT5ForQuestionAnswering,
+            ),
+        ):
+            # Mesh TensorFlow embeddings initialization
+            # See https://github.com/tensorflow/mesh/blob/fa19d69eafc9a482aff0b59ddd96b025c0cb207d/mesh_tensorflow/layers.py#L1624
+            module.shared.weight.data.normal_(mean=0.0, std=factor * 1.0)
+            if hasattr(module, "lm_head") and not self.config.tie_word_embeddings:
+                module.lm_head.weight.data.normal_(mean=0.0, std=factor * 1.0)
+            if hasattr(module, "qa_outputs"):
+                module.qa_outputs.weight.data.normal_(mean=0.0, std=factor * ((self.config.d_model) ** -0.5))
+                module.qa_outputs.bias.data.zero_()
+        elif isinstance(module, UMT5ForTokenClassification):
+            if hasattr(module, "classifier"):
+                module.classifier.weight.data.normal_(mean=0.0, std=factor * 1.0)
+                module.classifier.bias.data.zero_()
+        elif isinstance(module, UMT5ClassificationHead):
+            module.dense.weight.data.normal_(mean=0.0, std=factor * ((self.config.d_model) ** -0.5))
+            if hasattr(module.dense, "bias") and module.dense.bias is not None:
+                module.dense.bias.data.zero_()
+            module.out_proj.weight.data.normal_(mean=0.0, std=factor * ((self.config.d_model) ** -0.5))
+            if hasattr(module.out_proj, "bias") and module.out_proj.bias is not None:
+                module.out_proj.bias.data.zero_()
+        elif isinstance(module, UMT5DenseActDense):
+            # Mesh TensorFlow FF initialization
+            # See https://github.com/tensorflow/mesh/blob/master/mesh_tensorflow/transformer/transformer_layers.py#L56
+            # and https://github.com/tensorflow/mesh/blob/fa19d69eafc9a482aff0b59ddd96b025c0cb207d/mesh_tensorflow/layers.py#L89
+            module.wi.weight.data.normal_(mean=0.0, std=factor * ((self.config.d_model) ** -0.5))
+            if hasattr(module.wi, "bias") and module.wi.bias is not None:
+                module.wi.bias.data.zero_()
+            module.wo.weight.data.normal_(mean=0.0, std=factor * ((self.config.d_ff) ** -0.5))
+            if hasattr(module.wo, "bias") and module.wo.bias is not None:
+                module.wo.bias.data.zero_()
+        elif isinstance(module, UMT5DenseGatedActDense):
+            module.wi_0.weight.data.normal_(mean=0.0, std=factor * ((self.config.d_model) ** -0.5))
+            if hasattr(module.wi_0, "bias") and module.wi_0.bias is not None:
+                module.wi_0.bias.data.zero_()
+            module.wi_1.weight.data.normal_(mean=0.0, std=factor * ((self.config.d_model) ** -0.5))
+            if hasattr(module.wi_1, "bias") and module.wi_1.bias is not None:
+                module.wi_1.bias.data.zero_()
+            module.wo.weight.data.normal_(mean=0.0, std=factor * ((self.config.d_ff) ** -0.5))
+            if hasattr(module.wo, "bias") and module.wo.bias is not None:
+                module.wo.bias.data.zero_()
+        elif isinstance(module, UMT5Attention):
+            # Mesh TensorFlow attention initialization to avoid scaling before softmax
+            # See https://github.com/tensorflow/mesh/blob/fa19d69eafc9a482aff0b59ddd96b025c0cb207d/mesh_tensorflow/transformer/attention.py#L136
+            d_model = self.config.d_model
+            key_value_proj_dim = self.config.d_kv
+            n_heads = self.config.num_heads
+            module.q.weight.data.normal_(mean=0.0, std=factor * ((d_model * key_value_proj_dim) ** -0.5))
+            module.k.weight.data.normal_(mean=0.0, std=factor * (d_model**-0.5))
+            module.v.weight.data.normal_(mean=0.0, std=factor * (d_model**-0.5))
+            module.o.weight.data.normal_(mean=0.0, std=factor * ((n_heads * key_value_proj_dim) ** -0.5))
+            if module.has_relative_attention_bias:
+                module.relative_attention_bias.weight.data.normal_(mean=0.0, std=factor * ((d_model) ** -0.5))
+
+    def _shift_right(self, input_ids):
+        decoder_start_token_id = self.config.decoder_start_token_id
+        pad_token_id = self.config.pad_token_id
+
+        if decoder_start_token_id is None:
+            raise ValueError(
+                "self.model.config.decoder_start_token_id has to be defined. In UMT5 it is usually set to the pad_token_id. "
+                "See UMT5 docs for more information."
+            )
+
+        # shift inputs to the right
+        if is_torch_fx_proxy(input_ids):
+            # Item assignment is not supported natively for proxies.
+            shifted_input_ids = torch.full(input_ids.shape[:-1] + (1,), decoder_start_token_id)
+            shifted_input_ids = torch.cat([shifted_input_ids, input_ids[..., :-1]], dim=-1)
+        else:
+            shifted_input_ids = input_ids.new_zeros(input_ids.shape)
+            shifted_input_ids[..., 1:] = input_ids[..., :-1].clone()
+            shifted_input_ids[..., 0] = decoder_start_token_id
+
+        if pad_token_id is None:
+            raise ValueError("self.model.config.pad_token_id has to be defined.")
+        # replace possible -100 values in labels by `pad_token_id`
+        shifted_input_ids.masked_fill_(shifted_input_ids == -100, pad_token_id)
+
+        return shifted_input_ids
+
+
+class UMT5Stack(UMT5PreTrainedModel):
+    def __init__(self, config, embed_tokens=None):
+        super().__init__(config)
+        self.embed_tokens = embed_tokens
+        self.is_decoder = config.is_decoder
+        self.block = nn.ModuleList([UMT5Block(config) for i in range(config.num_layers)])
+        self.final_layer_norm = UMT5LayerNorm(config.d_model, eps=config.layer_norm_epsilon)
+        self.dropout = nn.Dropout(config.dropout_rate)
+
+        # Initialize weights and apply final processing
+        self.gradient_checkpointing = False
+        self.post_init()
+
+    def get_input_embeddings(self):
+        return self.embed_tokens
+
+    def set_input_embeddings(self, new_embeddings):
+        self.embed_tokens = new_embeddings
+
+    def forward(
+        self,
+        input_ids=None,
+        attention_mask=None,
+        encoder_hidden_states=None,
+        encoder_attention_mask=None,
+        inputs_embeds=None,
+        head_mask=None,
+        cross_attn_head_mask=None,
+        past_key_values=None,
+        use_cache=None,
+        output_attentions=None,
+        output_hidden_states=None,
+        return_dict=None,
+    ):
+        use_cache = use_cache if use_cache is not None else self.config.use_cache
+        output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions
+        output_hidden_states = (
+            output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states
+        )
+        return_dict = return_dict if return_dict is not None else self.config.use_return_dict
+
+        if input_ids is not None and inputs_embeds is not None:
+            err_msg_prefix = "decoder_" if self.is_decoder else ""
+            raise ValueError(
+                f"You cannot specify both {err_msg_prefix}input_ids and {err_msg_prefix}inputs_embeds at the same time"
+            )
+        elif input_ids is not None:
+            input_shape = input_ids.size()
+            input_ids = input_ids.view(-1, input_shape[-1])
+        elif inputs_embeds is not None:
+            input_shape = inputs_embeds.size()[:-1]
+        else:
+            err_msg_prefix = "decoder_" if self.is_decoder else ""
+            raise ValueError(f"You have to specify either {err_msg_prefix}input_ids or {err_msg_prefix}inputs_embeds")
+
+        if inputs_embeds is None:
+            if self.embed_tokens is None:
+                raise ValueError("You have to initialize the model with valid token embeddings")
+            inputs_embeds = self.embed_tokens(input_ids)
+
+        batch_size, seq_length = input_shape
+
+        # required mask seq length can be calculated via length of past
+        mask_seq_length = past_key_values[0][0].shape[2] + seq_length if past_key_values is not None else seq_length
+
+        if use_cache is True:
+            if not self.is_decoder:
+                raise ValueError(f"`use_cache` can only be set to `True` if {self} is used as a decoder")
+
+        if attention_mask is None:
+            attention_mask = torch.ones(batch_size, mask_seq_length, device=inputs_embeds.device)
+        if self.is_decoder and encoder_attention_mask is None and encoder_hidden_states is not None:
+            encoder_seq_length = encoder_hidden_states.shape[1]
+            encoder_attention_mask = torch.ones(
+                batch_size, encoder_seq_length, device=inputs_embeds.device, dtype=torch.long
+            )
+
+        # initialize past_key_values with `None` if past does not exist
+        if past_key_values is None:
+            past_key_values = [None] * len(self.block)
+
+        # We can provide a self-attention mask of dimensions [batch_size, from_seq_length, to_seq_length]
+        # ourselves in which case we just need to make it broadcastable to all heads.
+        extended_attention_mask = self.get_extended_attention_mask(attention_mask, input_shape)
+
+        # If a 2D or 3D attention mask is provided for the cross-attention
+        # we need to make broadcastable to [batch_size, num_heads, seq_length, seq_length]
+        if self.is_decoder and encoder_hidden_states is not None:
+            encoder_batch_size, encoder_sequence_length, _ = encoder_hidden_states.size()
+            encoder_hidden_shape = (encoder_batch_size, encoder_sequence_length)
+            if encoder_attention_mask is None:
+                encoder_attention_mask = torch.ones(encoder_hidden_shape, device=inputs_embeds.device)
+            encoder_extended_attention_mask = self.invert_attention_mask(encoder_attention_mask)
+        else:
+            encoder_extended_attention_mask = None
+
+        if self.gradient_checkpointing and self.training:
+            if use_cache:
+                logger.warning_once(
+                    "`use_cache=True` is incompatible with gradient checkpointing. Setting `use_cache=False`..."
+                )
+                use_cache = False
+
+        # Prepare head mask if needed
+        head_mask = self.get_head_mask(head_mask, self.config.num_layers)
+        cross_attn_head_mask = self.get_head_mask(cross_attn_head_mask, self.config.num_layers)
+        present_key_value_states = () if use_cache else None
+        all_hidden_states = () if output_hidden_states else None
+        all_attentions = () if output_attentions else None
+        all_cross_attentions = () if output_attentions and self.is_decoder else None
+
+        hidden_states = self.dropout(inputs_embeds)
+
+        for i, (layer_module, past_key_value) in enumerate(zip(self.block, past_key_values)):
+            layer_head_mask = head_mask[i]
+            cross_attn_layer_head_mask = cross_attn_head_mask[i]
+
+            if output_hidden_states:
+                all_hidden_states = all_hidden_states + (hidden_states,)
+
+            if self.gradient_checkpointing and self.training:
+                layer_outputs = self._gradient_checkpointing_func(
+                    layer_module.forward,
+                    hidden_states,
+                    extended_attention_mask,
+                    encoder_hidden_states,
+                    encoder_extended_attention_mask,
+                    layer_head_mask,
+                    cross_attn_layer_head_mask,
+                    None,  # past_key_value is always None with gradient checkpointing
+                    use_cache,
+                    output_attentions,
+                )
+            else:
+                layer_outputs = layer_module(
+                    hidden_states,
+                    attention_mask=extended_attention_mask,
+                    encoder_hidden_states=encoder_hidden_states,
+                    encoder_attention_mask=encoder_extended_attention_mask,
+                    layer_head_mask=layer_head_mask,
+                    cross_attn_layer_head_mask=cross_attn_layer_head_mask,
+                    past_key_value=past_key_value,
+                    use_cache=use_cache,
+                    output_attentions=output_attentions,
+                )
+
+                hidden_states = layer_outputs[0]
+
+            if use_cache:
+                present_key_value_states += (layer_outputs[1],)
+
+            if output_attentions:
+                all_attentions += (layer_outputs[2],)
+                if self.is_decoder:
+                    all_cross_attentions += (layer_outputs[3],)
+
+        hidden_states = self.final_layer_norm(hidden_states)
+        hidden_states = self.dropout(hidden_states)
+
+        # Add last layer
+        if output_hidden_states:
+            all_hidden_states = all_hidden_states + (hidden_states,)
+
+        if not return_dict:
+            return tuple(
+                v
+                for v in [
+                    hidden_states,
+                    present_key_value_states,
+                    all_hidden_states,
+                    all_attentions,
+                    all_cross_attentions,
+                ]
+                if v is not None
+            )
+        return BaseModelOutputWithPastAndCrossAttentions(
+            last_hidden_state=hidden_states,
+            past_key_values=present_key_value_states,
+            hidden_states=all_hidden_states,
+            attentions=all_attentions,
+            cross_attentions=all_cross_attentions,
+        )
+
+
+UMT5_START_DOCSTRING = r"""
+
+    The UMT5 model was proposed in [Exploring the Limits of Transfer Learning with a Unified Text-to-Text
+    Transformer](https://arxiv.org/abs/1910.10683) by Colin Raffel, Noam Shazeer, Adam Roberts, Katherine Lee, Sharan
+    Narang, Michael Matena, Yanqi Zhou, Wei Li, Peter J. Liu. It's an encoder decoder transformer pre-trained in a
+    text-to-text denoising generative setting.
+
+    This model inherits from [`PreTrainedModel`]. Check the superclass documentation for the generic methods the
+    library implements for all its model (such as downloading or saving, resizing the input embeddings, pruning heads
+    etc.)
+
+    This model is also a PyTorch [torch.nn.Module](https://pytorch.org/docs/stable/nn.html#torch.nn.Module) subclass.
+    Use it as a regular PyTorch Module and refer to the PyTorch documentation for all matter related to general usage
+    and behavior.
+
+    Parameters:
+        config ([`UMT5Config`]): Model configuration class with all the parameters of the model.
+            Initializing with a config file does not load the weights associated with the model, only the
+            configuration. Check out the [`~PreTrainedModel.from_pretrained`] method to load the model weights.
+"""
+
+UMT5_INPUTS_DOCSTRING = r"""
+    Args:
+        input_ids (`torch.LongTensor` of shape `(batch_size, sequence_length)`):
+            Indices of input sequence tokens in the vocabulary. UMT5 is a model with relative position embeddings so
+            you should be able to pad the inputs on both the right and the left.
+
+            Indices can be obtained using [`AutoTokenizer`]. See [`PreTrainedTokenizer.encode`] and
+            [`PreTrainedTokenizer.__call__`] for detail.
+
+            [What are input IDs?](../glossary#input-ids)
+
+            To know more on how to prepare `input_ids` for pretraining take a look a [UMT5 Training](./umt5#training).
+        attention_mask (`torch.FloatTensor` of shape `(batch_size, sequence_length)`, *optional*):
+            Mask to avoid performing attention on padding token indices. Mask values selected in `[0, 1]`:
+
+            - 1 for tokens that are **not masked**,
+            - 0 for tokens that are **masked**.
+
+            [What are attention masks?](../glossary#attention-mask)
+        decoder_input_ids (`torch.LongTensor` of shape `(batch_size, target_sequence_length)`, *optional*):
+            Indices of decoder input sequence tokens in the vocabulary.
+
+            Indices can be obtained using [`AutoTokenizer`]. See [`PreTrainedTokenizer.encode`] and
+            [`PreTrainedTokenizer.__call__`] for details.
+
+            [What are decoder input IDs?](../glossary#decoder-input-ids)
+
+            UMT5 uses the `pad_token_id` as the starting token for `decoder_input_ids` generation. If `past_key_values`
+            is used, optionally only the last `decoder_input_ids` have to be input (see `past_key_values`).
+
+            To know more on how to prepare `decoder_input_ids` for pretraining take a look at [UMT5
+            Training](./umt5#training).
+        decoder_attention_mask (`torch.BoolTensor` of shape `(batch_size, target_sequence_length)`, *optional*):
+            Default behavior: generate a tensor that ignores pad tokens in `decoder_input_ids`. Causal mask will also
+            be used by default.
+        head_mask (`torch.FloatTensor` of shape `(num_heads,)` or `(num_layers, num_heads)`, *optional*):
+            Mask to nullify selected heads of the self-attention modules in the encoder. Mask values selected in `[0,
+            1]`:
+
+            - 1 indicates the head is **not masked**,
+            - 0 indicates the head is **masked**.
+
+        decoder_head_mask (`torch.FloatTensor` of shape `(num_heads,)` or `(num_layers, num_heads)`, *optional*):
+            Mask to nullify selected heads of the self-attention modules in the decoder. Mask values selected in `[0,
+            1]`:
+
+            - 1 indicates the head is **not masked**,
+            - 0 indicates the head is **masked**.
+
+        cross_attn_head_mask (`torch.Tensor` of shape `(num_heads,)` or `(num_layers, num_heads)`, *optional*):
+                Mask to nullify selected heads of the cross-attention modules in the decoder. Mask values selected in
+                `[0, 1]`:
+
+                - 1 indicates the head is **not masked**,
+                - 0 indicates the head is **masked**.
+
+        encoder_outputs (`tuple(tuple(torch.FloatTensor)`, *optional*):
+            Tuple consists of (`last_hidden_state`, `optional`: *hidden_states*, `optional`: *attentions*)
+            `last_hidden_state` of shape `(batch_size, sequence_length, hidden_size)` is a sequence of hidden states at
+            the output of the last layer of the encoder. Used in the cross-attention of the decoder.
+        past_key_values (`tuple(tuple(torch.FloatTensor))` of length `config.n_layers` with each tuple having 4 tensors of shape `(batch_size, num_heads, sequence_length - 1, embed_size_per_head)`):
+            Contains precomputed key and value hidden states of the attention blocks. Can be used to speed up decoding.
+
+            If `past_key_values` are used, the user can optionally input only the last `decoder_input_ids` (those that
+            don't have their past key value states given to this model) of shape `(batch_size, 1)` instead of all
+            `decoder_input_ids` of shape `(batch_size, sequence_length)`.
+        inputs_embeds (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`, *optional*):
+            Optionally, instead of passing `input_ids` you can choose to directly pass an embedded representation. This
+            is useful if you want more control over how to convert `input_ids` indices into associated vectors than the
+            model's internal embedding lookup matrix.
+        decoder_inputs_embeds (`torch.FloatTensor` of shape `(batch_size, target_sequence_length, hidden_size)`, *optional*):
+            Optionally, instead of passing `decoder_input_ids` you can choose to directly pass an embedded
+            representation. If `past_key_values` is used, optionally only the last `decoder_inputs_embeds` have to be
+            input (see `past_key_values`). This is useful if you want more control over how to convert
+            `decoder_input_ids` indices into associated vectors than the model's internal embedding lookup matrix.
+
+            If `decoder_input_ids` and `decoder_inputs_embeds` are both unset, `decoder_inputs_embeds` takes the value
+            of `inputs_embeds`.
+
+        use_cache (`bool`, *optional*):
+            If set to `True`, `past_key_values` key value states are returned and can be used to speed up decoding (see
+            `past_key_values`).
+
+        output_attentions (`bool`, *optional*):
+            Whether or not to return the attentions tensors of all attention layers. See `attentions` under returned
+            tensors for more detail.
+        output_hidden_states (`bool`, *optional*):
+            Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors for
+            more detail.
+        return_dict (`bool`, *optional*):
+            Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple.
+"""
+
+UMT5_ENCODER_INPUTS_DOCSTRING = r"""
+    Args:
+        input_ids (`torch.LongTensor` of shape `(batch_size, sequence_length)`):
+            Indices of input sequence tokens in the vocabulary. UMT5 is a model with relative position embeddings so
+            you should be able to pad the inputs on both the right and the left.
+
+            Indices can be obtained using [`AutoTokenizer`]. See [`PreTrainedTokenizer.encode`] and
+            [`PreTrainedTokenizer.__call__`] for detail.
+
+            To know more on how to prepare `input_ids` for pretraining take a look a [UMT5 Training](./umt5#training).
+        attention_mask (`torch.FloatTensor` of shape `(batch_size, sequence_length)`, *optional*):
+            Mask to avoid performing attention on padding token indices. Mask values selected in `[0, 1]`:
+
+            - 1 for tokens that are **not masked**,
+            - 0 for tokens that are **masked**.
+
+            [What are attention masks?](../glossary#attention-mask)
+        head_mask (`torch.FloatTensor` of shape `(num_heads,)` or `(num_layers, num_heads)`, *optional*):
+            Mask to nullify selected heads of the self-attention modules. Mask values selected in `[0, 1]`:
+
+            - 1 indicates the head is **not masked**,
+            - 0 indicates the head is **masked**.
+
+        inputs_embeds (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`, *optional*):
+            Optionally, instead of passing `input_ids` you can choose to directly pass an embedded representation. This
+            is useful if you want more control over how to convert `input_ids` indices into associated vectors than the
+            model's internal embedding lookup matrix.
+        output_attentions (`bool`, *optional*):
+            Whether or not to return the attentions tensors of all attention layers. See `attentions` under returned
+            tensors for more detail.
+        output_hidden_states (`bool`, *optional*):
+            Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors for
+            more detail.
+        return_dict (`bool`, *optional*):
+            Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple.
+"""
+
+
+@add_start_docstrings(
+    "The bare UMT5 Model transformer outputting raw hidden-states without any specific head on top.",
+    UMT5_START_DOCSTRING,
+)
+class UMT5Model(UMT5PreTrainedModel):
+    r"""
+    Examples:
+
+    ```python
+    >>> from transformers import UMT5Model, AutoTokenizer
+
+    >>> model = UMT5Model.from_pretrained("google/umt5-small")
+    >>> tokenizer = AutoTokenizer.from_pretrained("google/umt5-small")
+    >>> noisy_text = "UN Offizier sagt, dass weiter <extra_id_0> werden muss in Syrien."
+    >>> label = "<extra_id_0> verhandelt"
+    >>> inputs = tokenizer(inputs, return_tensors="pt")
+    >>> labels = tokenizer(label=label, return_tensors="pt")
+
+    >>> outputs = model(input_ids=inputs["input_ids"], decoder_input_ids=labels["input_ids"])
+    >>> hidden_states = outputs.last_hidden_state
+    ```"""
+
+    model_type = "umt5"
+    config_class = UMT5Config
+    _tied_weights_keys = ["encoder.embed_tokens.weight", "decoder.embed_tokens.weight"]
+
+    def __init__(self, config):
+        super().__init__(config)
+        self.shared = nn.Embedding(config.vocab_size, config.d_model)
+
+        encoder_config = copy.deepcopy(config)
+        encoder_config.is_decoder = False
+        encoder_config.use_cache = False
+        encoder_config.is_encoder_decoder = False
+        self.encoder = UMT5Stack(encoder_config, self.shared)
+
+        decoder_config = copy.deepcopy(config)
+        decoder_config.is_decoder = True
+        decoder_config.is_encoder_decoder = False
+        decoder_config.num_layers = config.num_decoder_layers
+        self.decoder = UMT5Stack(decoder_config, self.shared)
+
+        # Initialize weights and apply final processing
+        self.post_init()
+
+    # Copied from transformers.models.t5.modeling_t5.T5Model.get_input_embeddings
+    def get_input_embeddings(self):
+        return self.shared
+
+    # Copied from transformers.models.t5.modeling_t5.T5Model.set_input_embeddings
+    def set_input_embeddings(self, new_embeddings):
+        self.shared = new_embeddings
+        self.encoder.set_input_embeddings(new_embeddings)
+        self.decoder.set_input_embeddings(new_embeddings)
+
+    # Copied from transformers.models.t5.modeling_t5.T5Model._tie_weights
+    def _tie_weights(self):
+        if self.config.tie_word_embeddings:
+            self._tie_or_clone_weights(self.encoder.embed_tokens, self.shared)
+            self._tie_or_clone_weights(self.decoder.embed_tokens, self.shared)
+
+    # Copied from transformers.models.t5.modeling_t5.T5Model.get_encoder
+    def get_encoder(self):
+        return self.encoder
+
+    # Copied from transformers.models.t5.modeling_t5.T5Model.get_decoder
+    def get_decoder(self):
+        return self.decoder
+
+    # Copied from transformers.models.t5.modeling_t5.T5Model._prune_heads
+    def _prune_heads(self, heads_to_prune):
+        """
+        Prunes heads of the model. heads_to_prune: dict of {layer_num: list of heads to prune in this layer} See base
+        class PreTrainedModel
+        """
+        for layer, heads in heads_to_prune.items():
+            self.encoder.layer[layer].attention.prune_heads(heads)
+
+    @add_start_docstrings_to_model_forward(UMT5_INPUTS_DOCSTRING)
+    @replace_return_docstrings(output_type=Seq2SeqModelOutput, config_class=_CONFIG_FOR_DOC)
+    def forward(
+        self,
+        input_ids: Optional[torch.LongTensor] = None,
+        attention_mask: Optional[torch.FloatTensor] = None,
+        decoder_input_ids: Optional[torch.LongTensor] = None,
+        decoder_attention_mask: Optional[torch.BoolTensor] = None,
+        head_mask: Optional[torch.FloatTensor] = None,
+        decoder_head_mask: Optional[torch.FloatTensor] = None,
+        cross_attn_head_mask: Optional[torch.Tensor] = None,
+        encoder_outputs: Optional[Tuple[Tuple[torch.FloatTensor]]] = None,
+        past_key_values: Optional[Tuple[Tuple[torch.FloatTensor]]] = None,
+        inputs_embeds: Optional[torch.Tensor] = None,
+        decoder_inputs_embeds: Optional[torch.Tensor] = None,
+        use_cache: Optional[bool] = None,
+        output_attentions: Optional[bool] = None,
+        output_hidden_states: Optional[bool] = None,
+        return_dict: Optional[bool] = None,
+    ) -> Union[Tuple[torch.FloatTensor], Seq2SeqModelOutput]:
+        r"""
+        Returns:
+
+        Example:
+
+        ```python
+        >>> from transformers import AutoTokenizer, UMT5Model
+
+        >>> tokenizer = AutoTokenizer.from_pretrained("google/umt5-small")
+        >>> model = UMT5Model.from_pretrained("google/umt5-small")
+
+        >>> input_ids = tokenizer(
+        ...     "Studies have been shown that owning a dog is good for you", return_tensors="pt"
+        ... ).input_ids  # Batch size 1
+        >>> decoder_input_ids = tokenizer("Studies show that", return_tensors="pt").input_ids  # Batch size 1
+
+        >>> # preprocess: Prepend decoder_input_ids with start token which is pad token for UMT5Model.
+        >>> # This is not needed for torch's UMT5ForConditionalGeneration as it does this internally using labels arg.
+        >>> decoder_input_ids = model._shift_right(decoder_input_ids)
+
+        >>> # forward pass
+        >>> outputs = model(input_ids=input_ids, decoder_input_ids=decoder_input_ids)
+        >>> last_hidden_states = outputs.last_hidden_state
+        ```"""
+        use_cache = use_cache if use_cache is not None else self.config.use_cache
+        return_dict = return_dict if return_dict is not None else self.config.use_return_dict
+
+        # Encode if needed (training, first prediction pass)
+        if encoder_outputs is None:
+            encoder_outputs = self.encoder(
+                input_ids=input_ids,
+                attention_mask=attention_mask,
+                inputs_embeds=inputs_embeds,
+                head_mask=head_mask,
+                output_attentions=output_attentions,
+                output_hidden_states=output_hidden_states,
+                return_dict=return_dict,
+            )
+        elif return_dict and not isinstance(encoder_outputs, BaseModelOutput):
+            encoder_outputs = BaseModelOutput(
+                last_hidden_state=encoder_outputs[0],
+                hidden_states=encoder_outputs[1] if len(encoder_outputs) > 1 else None,
+                attentions=encoder_outputs[2] if len(encoder_outputs) > 2 else None,
+            )
+
+        hidden_states = encoder_outputs[0]
+
+        # Decode
+        decoder_outputs = self.decoder(
+            input_ids=decoder_input_ids,
+            attention_mask=decoder_attention_mask,
+            inputs_embeds=decoder_inputs_embeds,
+            past_key_values=past_key_values,
+            encoder_hidden_states=hidden_states,
+            encoder_attention_mask=attention_mask,
+            head_mask=decoder_head_mask,
+            cross_attn_head_mask=cross_attn_head_mask,
+            use_cache=use_cache,
+            output_attentions=output_attentions,
+            output_hidden_states=output_hidden_states,
+            return_dict=return_dict,
+        )
+
+        if not return_dict:
+            return decoder_outputs + encoder_outputs
+
+        return Seq2SeqModelOutput(
+            last_hidden_state=decoder_outputs.last_hidden_state,
+            past_key_values=decoder_outputs.past_key_values,
+            decoder_hidden_states=decoder_outputs.hidden_states,
+            decoder_attentions=decoder_outputs.attentions,
+            cross_attentions=decoder_outputs.cross_attentions,
+            encoder_last_hidden_state=encoder_outputs.last_hidden_state,
+            encoder_hidden_states=encoder_outputs.hidden_states,
+            encoder_attentions=encoder_outputs.attentions,
+        )
+
+
+@add_start_docstrings("""UMT5 Model with a `language modeling` head on top.""", UMT5_START_DOCSTRING)
+class UMT5ForConditionalGeneration(UMT5PreTrainedModel):
+    r"""
+    Examples:
+
+    ```python
+    >>> from transformers import UMT5ForConditionalGeneration, AutoTokenizer
+
+    >>> model = UMT5ForConditionalGeneration.from_pretrained("google/umt5-small")
+    >>> tokenizer = AutoTokenizer.from_pretrained("google/umt5-small")
+    >>> article = "UN Offizier sagt, dass weiter verhandelt werden muss in Syrien."
+    >>> summary = "Weiter Verhandlung in Syrien."
+    >>> inputs = tokenizer(article, text_target=summary, return_tensors="pt")
+
+    >>> outputs = model(**inputs)
+    >>> loss = outputs.loss
+    ```"""
+
+    model_type = "umt5"
+    _tied_weights_keys = ["encoder.embed_tokens.weight", "decoder.embed_tokens.weight", "lm_head.weight"]
+
+    def __init__(self, config):
+        super().__init__(config)
+        self.model_dim = config.d_model
+
+        self.shared = nn.Embedding(config.vocab_size, config.d_model)
+
+        encoder_config = copy.deepcopy(config)
+        encoder_config.is_decoder = False
+        encoder_config.use_cache = False
+        encoder_config.is_encoder_decoder = False
+        self.encoder = UMT5Stack(encoder_config, self.shared)
+
+        decoder_config = copy.deepcopy(config)
+        decoder_config.is_decoder = True
+        decoder_config.is_encoder_decoder = False
+        decoder_config.num_layers = config.num_decoder_layers
+        self.decoder = UMT5Stack(decoder_config, self.shared)
+
+        self.lm_head = nn.Linear(config.d_model, config.vocab_size, bias=False)
+
+        # Initialize weights and apply final processing
+        self.post_init()
+
+    # Copied from transformers.models.t5.modeling_t5.T5ForConditionalGeneration.get_input_embeddings
+    def get_input_embeddings(self):
+        return self.shared
+
+    # Copied from transformers.models.t5.modeling_t5.T5ForConditionalGeneration.set_input_embeddings
+    def set_input_embeddings(self, new_embeddings):
+        self.shared = new_embeddings
+        self.encoder.set_input_embeddings(new_embeddings)
+        self.decoder.set_input_embeddings(new_embeddings)
+
+    # Copied from transformers.models.t5.modeling_t5.T5ForConditionalGeneration._tie_weights
+    def _tie_weights(self):
+        if self.config.tie_word_embeddings:
+            self._tie_or_clone_weights(self.encoder.embed_tokens, self.shared)
+            self._tie_or_clone_weights(self.decoder.embed_tokens, self.shared)
+
+    # Copied from transformers.models.t5.modeling_t5.T5ForConditionalGeneration.set_output_embeddings
+    def set_output_embeddings(self, new_embeddings):
+        self.lm_head = new_embeddings
+
+    # Copied from transformers.models.t5.modeling_t5.T5ForConditionalGeneration.get_output_embeddings
+    def get_output_embeddings(self):
+        return self.lm_head
+
+    # Copied from transformers.models.t5.modeling_t5.T5ForConditionalGeneration.get_encoder
+    def get_encoder(self):
+        return self.encoder
+
+    # Copied from transformers.models.t5.modeling_t5.T5ForConditionalGeneration.get_decoder
+    def get_decoder(self):
+        return self.decoder
+
+    @add_start_docstrings_to_model_forward(UMT5_INPUTS_DOCSTRING)
+    @replace_return_docstrings(output_type=Seq2SeqLMOutput, config_class=_CONFIG_FOR_DOC)
+    def forward(
+        self,
+        input_ids: Optional[torch.LongTensor] = None,
+        attention_mask: Optional[torch.FloatTensor] = None,
+        decoder_input_ids: Optional[torch.LongTensor] = None,
+        decoder_attention_mask: Optional[torch.BoolTensor] = None,
+        head_mask: Optional[torch.FloatTensor] = None,
+        decoder_head_mask: Optional[torch.FloatTensor] = None,
+        cross_attn_head_mask: Optional[torch.Tensor] = None,
+        encoder_outputs: Optional[Tuple[Tuple[torch.Tensor]]] = None,
+        past_key_values: Optional[Tuple[Tuple[torch.Tensor]]] = None,
+        inputs_embeds: Optional[torch.FloatTensor] = None,
+        decoder_inputs_embeds: Optional[torch.FloatTensor] = None,
+        labels: Optional[torch.LongTensor] = None,
+        use_cache: Optional[bool] = None,
+        output_attentions: Optional[bool] = None,
+        output_hidden_states: Optional[bool] = None,
+        return_dict: Optional[bool] = None,
+    ) -> Union[Tuple[torch.FloatTensor], Seq2SeqLMOutput]:
+        r"""
+        labels (`torch.LongTensor` of shape `(batch_size,)`, *optional*):
+            Labels for computing the sequence classification/regression loss. Indices should be in `[-100, 0, ...,
+            config.vocab_size - 1]`. All labels set to `-100` are ignored (masked), the loss is only computed for
+            labels in `[0, ..., config.vocab_size]`
+
+        Returns:
+
+        Examples:
+
+        ```python
+        >>> from transformers import AutoTokenizer, UMT5ForConditionalGeneration
+
+        >>> tokenizer = AutoTokenizer.from_pretrained("google/umt5-small")
+        >>> model = UMT5ForConditionalGeneration.from_pretrained("google/umt5-small")
+
+        >>> # training
+        >>> input_ids = tokenizer("The <extra_id_0> walks in <extra_id_1> park", return_tensors="pt").input_ids
+        >>> labels = tokenizer("<extra_id_0> cute dog <extra_id_1> the <extra_id_2>", return_tensors="pt").input_ids
+        >>> outputs = model(input_ids=input_ids, labels=labels)
+        >>> loss = outputs.loss
+        >>> logits = outputs.logits
+
+        >>> # inference
+        >>> input_ids = tokenizer("Studies have shown that <extra_id_0> good for you", return_tensors="pt").input_ids
+        >>> outputs = model.generate(input_ids)
+        >>> tokenizer.decode(outputs[0], skip_special_tokens=True)
+        ```"""
+        use_cache = use_cache if use_cache is not None else self.config.use_cache
+        return_dict = return_dict if return_dict is not None else self.config.use_return_dict
+
+        # Encode if needed (training, first prediction pass)
+        if encoder_outputs is None:
+            # Convert encoder inputs in embeddings if needed
+            encoder_outputs = self.encoder(
+                input_ids=input_ids,
+                attention_mask=attention_mask,
+                inputs_embeds=inputs_embeds,
+                head_mask=head_mask,
+                output_attentions=output_attentions,
+                output_hidden_states=output_hidden_states,
+                return_dict=return_dict,
+            )
+        elif return_dict and not isinstance(encoder_outputs, BaseModelOutput):
+            encoder_outputs = BaseModelOutput(
+                last_hidden_state=encoder_outputs[0],
+                hidden_states=encoder_outputs[1] if len(encoder_outputs) > 1 else None,
+                attentions=encoder_outputs[2] if len(encoder_outputs) > 2 else None,
+            )
+
+        hidden_states = encoder_outputs[0]
+
+        if labels is not None and decoder_input_ids is None and decoder_inputs_embeds is None:
+            # get decoder inputs from shifting lm labels to the right
+            decoder_input_ids = self._shift_right(labels)
+
+        # Decode
+        decoder_outputs = self.decoder(
+            input_ids=decoder_input_ids,
+            attention_mask=decoder_attention_mask,
+            inputs_embeds=decoder_inputs_embeds,
+            past_key_values=past_key_values,
+            encoder_hidden_states=hidden_states,
+            encoder_attention_mask=attention_mask,
+            head_mask=decoder_head_mask,
+            cross_attn_head_mask=cross_attn_head_mask,
+            use_cache=use_cache,
+            output_attentions=output_attentions,
+            output_hidden_states=output_hidden_states,
+            return_dict=return_dict,
+        )
+
+        sequence_output = decoder_outputs[0]
+
+        if self.config.tie_word_embeddings:
+            # Rescale output before projecting on vocab
+            # See https://github.com/tensorflow/mesh/blob/fa19d69eafc9a482aff0b59ddd96b025c0cb207d/mesh_tensorflow/transformer/transformer.py#L586
+            sequence_output = sequence_output * (self.model_dim**-0.5)
+
+        lm_logits = self.lm_head(sequence_output)
+
+        loss = None
+        if labels is not None:
+            loss_fct = CrossEntropyLoss(ignore_index=-100)
+            # move labels to correct device to enable PP
+            labels = labels.to(lm_logits.device)
+            loss = loss_fct(lm_logits.view(-1, lm_logits.size(-1)), labels.view(-1))
+
+        if not return_dict:
+            output = (lm_logits,) + decoder_outputs[1:] + encoder_outputs
+            return ((loss,) + output) if loss is not None else output
+
+        return Seq2SeqLMOutput(
+            loss=loss,
+            logits=lm_logits,
+            past_key_values=decoder_outputs.past_key_values,
+            decoder_hidden_states=decoder_outputs.hidden_states,
+            decoder_attentions=decoder_outputs.attentions,
+            cross_attentions=decoder_outputs.cross_attentions,
+            encoder_last_hidden_state=encoder_outputs.last_hidden_state,
+            encoder_hidden_states=encoder_outputs.hidden_states,
+            encoder_attentions=encoder_outputs.attentions,
+        )
+
+    # Copied from transformers.models.t5.modeling_t5.T5ForConditionalGeneration.prepare_inputs_for_generation
+    def prepare_inputs_for_generation(
+        self,
+        input_ids,
+        past_key_values=None,
+        attention_mask=None,
+        head_mask=None,
+        decoder_head_mask=None,
+        decoder_attention_mask=None,
+        cross_attn_head_mask=None,
+        use_cache=None,
+        encoder_outputs=None,
+        **kwargs,
+    ):
+        # cut decoder_input_ids if past_key_values is used
+        if past_key_values is not None:
+            past_length = past_key_values[0][0].shape[2]
+
+            # Some generation methods already pass only the last input ID
+            if input_ids.shape[1] > past_length:
+                remove_prefix_length = past_length
+            else:
+                # Default to old behavior: keep only final ID
+                remove_prefix_length = input_ids.shape[1] - 1
+
+            input_ids = input_ids[:, remove_prefix_length:]
+
+        return {
+            "decoder_input_ids": input_ids,
+            "past_key_values": past_key_values,
+            "encoder_outputs": encoder_outputs,
+            "attention_mask": attention_mask,
+            "head_mask": head_mask,
+            "decoder_head_mask": decoder_head_mask,
+            "decoder_attention_mask": decoder_attention_mask,
+            "cross_attn_head_mask": cross_attn_head_mask,
+            "use_cache": use_cache,
+        }
+
+    # Copied from transformers.models.t5.modeling_t5.T5ForConditionalGeneration.prepare_decoder_input_ids_from_labels
+    def prepare_decoder_input_ids_from_labels(self, labels: torch.Tensor):
+        return self._shift_right(labels)
+
+    @staticmethod
+    def _reorder_cache(past_key_values, beam_idx):
+        reordered_past = ()
+        for layer_past in past_key_values:
+            reordered_past += (
+                tuple(past_state.index_select(0, beam_idx.to(past_state.device)) for past_state in layer_past),
+            )
+        return reordered_past
+
+
+@add_start_docstrings(
+    "The bare UMT5 Model transformer outputting encoder's raw hidden-states without any specific head on top.",
+    UMT5_START_DOCSTRING,
+)
+class UMT5EncoderModel(UMT5PreTrainedModel):
+    r"""
+    Examples:
+
+    ```python
+    >>> from transformers import UMT5EncoderModel, AutoTokenizer
+
+    >>> model = UMT5EncoderModel.from_pretrained("google/umt5-small")
+    >>> tokenizer = AutoTokenizer.from_pretrained("google/umt5-small")
+    >>> article = "UN Offizier sagt, dass weiter verhandelt werden muss in Syrien."
+    >>> input_ids = tokenizer(article, return_tensors="pt").input_ids
+    >>> outputs = model(input_ids)
+    >>> hidden_state = outputs.last_hidden_state
+    ```"""
+
+    model_type = "umt5"
+    # config_class = UMT5Config
+    _tied_weights_keys = ["encoder.embed_tokens.weight"]
+
+    def __init__(self, config):
+        super().__init__(config)
+        self.shared = nn.Embedding(config.vocab_size, config.d_model)
+
+        encoder_config = copy.deepcopy(config)
+        encoder_config.use_cache = False
+        encoder_config.is_encoder_decoder = False
+        self.encoder = UMT5Stack(encoder_config, self.shared)
+
+        # Initialize weights and apply final processing
+        self.post_init()
+
+    # Copied from transformers.models.t5.modeling_t5.T5EncoderModel.get_input_embeddings
+    def get_input_embeddings(self):
+        return self.shared
+
+    # Copied from transformers.models.t5.modeling_t5.T5EncoderModel.set_input_embeddings
+    def set_input_embeddings(self, new_embeddings):
+        self.shared = new_embeddings
+        self.encoder.set_input_embeddings(new_embeddings)
+
+    # Copied from transformers.models.t5.modeling_t5.T5EncoderModel._tie_weights
+    def _tie_weights(self):
+        if self.config.tie_word_embeddings:
+            self._tie_or_clone_weights(self.encoder.embed_tokens, self.shared)
+
+    # Copied from transformers.models.t5.modeling_t5.T5EncoderModel.get_encoder
+    def get_encoder(self):
+        return self.encoder
+
+    # Copied from transformers.models.t5.modeling_t5.T5EncoderModel._prune_heads
+    def _prune_heads(self, heads_to_prune):
+        """
+        Prunes heads of the model. heads_to_prune: dict of {layer_num: list of heads to prune in this layer} See base
+        class PreTrainedModel
+        """
+        for layer, heads in heads_to_prune.items():
+            self.encoder.block[layer].layer[0].SelfAttention.prune_heads(heads)
+
+    @add_start_docstrings_to_model_forward(UMT5_ENCODER_INPUTS_DOCSTRING)
+    @replace_return_docstrings(output_type=BaseModelOutput, config_class=_CONFIG_FOR_DOC)
+    # Copied from transformers.models.t5.modeling_t5.T5EncoderModel.forward with T5->UMT5, google-t5/t5-small->google/umt5-small
+    def forward(
+        self,
+        input_ids: Optional[torch.LongTensor] = None,
+        attention_mask: Optional[torch.FloatTensor] = None,
+        head_mask: Optional[torch.FloatTensor] = None,
+        inputs_embeds: Optional[torch.FloatTensor] = None,
+        output_attentions: Optional[bool] = None,
+        output_hidden_states: Optional[bool] = None,
+        return_dict: Optional[bool] = None,
+    ) -> Union[Tuple[torch.FloatTensor], BaseModelOutput]:
+        r"""
+        Returns:
+
+        Example:
+
+        ```python
+        >>> from transformers import AutoTokenizer, UMT5EncoderModel
+
+        >>> tokenizer = AutoTokenizer.from_pretrained("google/umt5-small")
+        >>> model = UMT5EncoderModel.from_pretrained("google/umt5-small")
+        >>> input_ids = tokenizer(
+        ...     "Studies have been shown that owning a dog is good for you", return_tensors="pt"
+        ... ).input_ids  # Batch size 1
+        >>> outputs = model(input_ids=input_ids)
+        >>> last_hidden_states = outputs.last_hidden_state
+        ```"""
+        return_dict = return_dict if return_dict is not None else self.config.use_return_dict
+
+        encoder_outputs = self.encoder(
+            input_ids=input_ids,
+            attention_mask=attention_mask,
+            inputs_embeds=inputs_embeds,
+            head_mask=head_mask,
+            output_attentions=output_attentions,
+            output_hidden_states=output_hidden_states,
+            return_dict=return_dict,
+        )
+
+        return encoder_outputs
+
+
+@add_start_docstrings(
+    """
+    UMT5 model with a sequence classification/head on top (a linear layer on top of the pooled output) e.g. for GLUE
+    tasks.
+    """,
+    UMT5_START_DOCSTRING,
+)
+class UMT5ForSequenceClassification(UMT5PreTrainedModel):
+    _keys_to_ignore_on_load_unexpected = ["decoder.block.0.layer.1.EncDecAttention.relative_attention_bias.weight"]
+    _tied_weights_keys = ["encoder.embed_tokens.weight", "decoder.embed_tokens.weight"]
+
+    # Copied from transformers.models.t5.modeling_t5.T5ForSequenceClassification.__init__ with T5->UMT5
+    def __init__(self, config: UMT5Config):
+        super().__init__(config)
+        self.transformer = UMT5Model(config)
+        self.classification_head = UMT5ClassificationHead(config)
+
+        # Initialize weights and apply final processing
+        self.post_init()
+
+        self.model_parallel = False
+
+    @add_start_docstrings_to_model_forward(UMT5_INPUTS_DOCSTRING)
+    @replace_return_docstrings(output_type=Seq2SeqSequenceClassifierOutput, config_class=_CONFIG_FOR_DOC)
+    def forward(
+        self,
+        input_ids: torch.LongTensor = None,
+        attention_mask: Optional[torch.Tensor] = None,
+        decoder_input_ids: Optional[torch.LongTensor] = None,
+        decoder_attention_mask: Optional[torch.LongTensor] = None,
+        head_mask: Optional[torch.Tensor] = None,
+        decoder_head_mask: Optional[torch.Tensor] = None,
+        cross_attn_head_mask: Optional[torch.Tensor] = None,
+        encoder_outputs: Optional[List[torch.FloatTensor]] = None,
+        inputs_embeds: Optional[torch.FloatTensor] = None,
+        decoder_inputs_embeds: Optional[torch.FloatTensor] = None,
+        labels: Optional[torch.LongTensor] = None,
+        use_cache: Optional[bool] = None,
+        output_attentions: Optional[bool] = None,
+        output_hidden_states: Optional[bool] = None,
+        return_dict: Optional[bool] = None,
+    ) -> Union[Tuple, Seq2SeqSequenceClassifierOutput]:
+        r"""
+        labels (`torch.LongTensor` of shape `(batch_size,)`, *optional*):
+            Labels for computing the sequence classification/regression loss. Indices should be in `[0, ...,
+            config.num_labels - 1]`. If `config.num_labels > 1` a classification loss is computed (Cross-Entropy).
+        Returns:
+        """
+        return_dict = return_dict if return_dict is not None else self.config.use_return_dict
+        if labels is not None:
+            use_cache = False
+
+        if input_ids is None and inputs_embeds is not None:
+            raise NotImplementedError(
+                f"Passing input embeddings is currently not supported for {self.__class__.__name__}"
+            )
+
+        # Copied from models.bart.modeling_bart.BartModel.forward different to other models, T5 automatically creates
+        # decoder_input_ids from input_ids if no decoder_input_ids are provided
+        if decoder_input_ids is None and decoder_inputs_embeds is None:
+            if input_ids is None:
+                raise ValueError(
+                    "If no `decoder_input_ids` or `decoder_inputs_embeds` are "
+                    "passed, `input_ids` cannot be `None`. Please pass either "
+                    "`input_ids` or `decoder_input_ids` or `decoder_inputs_embeds`."
+                )
+            decoder_input_ids = self._shift_right(input_ids)
+
+        outputs = self.transformer(
+            input_ids,
+            attention_mask=attention_mask,
+            decoder_input_ids=decoder_input_ids,
+            decoder_attention_mask=decoder_attention_mask,
+            head_mask=head_mask,
+            decoder_head_mask=decoder_head_mask,
+            cross_attn_head_mask=cross_attn_head_mask,
+            encoder_outputs=encoder_outputs,
+            inputs_embeds=inputs_embeds,
+            decoder_inputs_embeds=decoder_inputs_embeds,
+            use_cache=use_cache,
+            output_attentions=output_attentions,
+            output_hidden_states=output_hidden_states,
+            return_dict=return_dict,
+        )
+        sequence_output = outputs[0]
+
+        eos_mask = input_ids.eq(self.config.eos_token_id).to(sequence_output.device)
+
+        if len(torch.unique_consecutive(eos_mask.sum(1))) > 1:
+            raise ValueError("All examples must have the same number of <eos> tokens.")
+        batch_size, _, hidden_size = sequence_output.shape
+        sentence_representation = sequence_output[eos_mask, :].view(batch_size, -1, hidden_size)[:, -1, :]
+        logits = self.classification_head(sentence_representation)
+
+        loss = None
+        if labels is not None:
+            labels = labels.to(logits.device)
+            if self.config.problem_type is None:
+                if self.config.num_labels == 1:
+                    self.config.problem_type = "regression"
+                elif self.config.num_labels > 1 and (labels.dtype == torch.long or labels.dtype == torch.int):
+                    self.config.problem_type = "single_label_classification"
+                else:
+                    self.config.problem_type = "multi_label_classification"
+
+            if self.config.problem_type == "regression":
+                loss_fct = MSELoss()
+                if self.config.num_labels == 1:
+                    loss = loss_fct(logits.squeeze(), labels.squeeze())
+                else:
+                    loss = loss_fct(logits, labels)
+            elif self.config.problem_type == "single_label_classification":
+                loss_fct = CrossEntropyLoss()
+                loss = loss_fct(logits.view(-1, self.config.num_labels), labels.view(-1))
+            elif self.config.problem_type == "multi_label_classification":
+                loss_fct = BCEWithLogitsLoss()
+                loss = loss_fct(logits, labels)
+        if not return_dict:
+            output = (logits,) + outputs[1:]
+            return ((loss,) + output) if loss is not None else output
+
+        return Seq2SeqSequenceClassifierOutput(
+            loss=loss,
+            logits=logits,
+            past_key_values=outputs.past_key_values,
+            decoder_hidden_states=outputs.decoder_hidden_states,
+            decoder_attentions=outputs.decoder_attentions,
+            cross_attentions=outputs.cross_attentions,
+            encoder_last_hidden_state=outputs.encoder_last_hidden_state,
+            encoder_hidden_states=outputs.encoder_hidden_states,
+            encoder_attentions=outputs.encoder_attentions,
+        )
+
+
+@add_start_docstrings(
+    """
+    UMT5 Encoder Model with a token classification head on top (a linear layer on top of the hidden-states output)
+    e.g. for Named-Entity-Recognition (NER) tasks.
+    """,
+    UMT5_START_DOCSTRING,
+)
+class UMT5ForTokenClassification(UMT5PreTrainedModel):
+    _keys_to_ignore_on_load_unexpected = ["decoder.block.0.layer.1.EncDecAttention.relative_attention_bias.weight"]
+    _tied_weights_keys = ["transformer.encoder.embed_tokens.weight"]
+
+    # Copied from transformers.models.t5.modeling_t5.T5ForTokenClassification.__init__ with T5->UMT5
+    def __init__(self, config: UMT5Config):
+        super().__init__(config)
+        self.num_labels = config.num_labels
+
+        self.transformer = UMT5EncoderModel(config)
+        self.dropout = nn.Dropout(config.classifier_dropout)
+        self.classifier = nn.Linear(config.hidden_size, config.num_labels)
+
+        # Initialize weights and apply final processing
+        self.post_init()
+
+    @add_start_docstrings_to_model_forward(UMT5_INPUTS_DOCSTRING)
+    @replace_return_docstrings(output_type=TokenClassifierOutput, config_class=_CONFIG_FOR_DOC)
+    # Copied from transformers.models.t5.modeling_t5.T5ForTokenClassification.forward with T5->UMT5
+    def forward(
+        self,
+        input_ids: Optional[torch.Tensor] = None,
+        attention_mask: Optional[torch.Tensor] = None,
+        head_mask: Optional[torch.Tensor] = None,
+        inputs_embeds: Optional[torch.Tensor] = None,
+        labels: Optional[torch.Tensor] = None,
+        output_attentions: Optional[bool] = None,
+        output_hidden_states: Optional[bool] = None,
+        return_dict: Optional[bool] = None,
+    ) -> Union[Tuple[torch.Tensor], TokenClassifierOutput]:
+        r"""
+        labels (`torch.LongTensor` of shape `(batch_size, sequence_length)`, *optional*):
+            Labels for computing the token classification loss. Indices should be in `[0, ..., config.num_labels - 1]`.
+        Returns:
+        """
+        return_dict = return_dict if return_dict is not None else self.config.use_return_dict
+
+        outputs = self.transformer(
+            input_ids,
+            attention_mask=attention_mask,
+            head_mask=head_mask,
+            inputs_embeds=inputs_embeds,
+            output_attentions=output_attentions,
+            output_hidden_states=output_hidden_states,
+            return_dict=return_dict,
+        )
+
+        hidden_states = outputs[0]
+        hidden_states = self.dropout(hidden_states)
+        logits = self.classifier(hidden_states)
+
+        loss = None
+        if labels is not None:
+            loss_fct = CrossEntropyLoss()
+            loss = loss_fct(logits.view(-1, self.num_labels), labels.view(-1))
+
+        if not return_dict:
+            output = (logits, outputs[2:-1])
+            return ((loss,) + output) if loss is not None else output
+
+        return TokenClassifierOutput(
+            loss=loss,
+            logits=logits,
+            hidden_states=outputs.hidden_states,
+            attentions=outputs.attentions,
+        )
+
+
+@add_start_docstrings(
+    """
+    UMT5 Model with a span classification head on top for extractive question-answering tasks like SQuAD (linear layers
+    on top of the hidden-states output to compute `span start logits` and `span end logits`).
+    """,
+    UMT5_START_DOCSTRING,
+)
+class UMT5ForQuestionAnswering(UMT5PreTrainedModel):
+    _tied_weights_keys = ["encoder.embed_tokens.weight", "decoder.embed_tokens.weight"]
+
+    def __init__(self, config):
+        super().__init__(config)
+        self.model_dim = config.d_model
+
+        self.shared = nn.Embedding(config.vocab_size, config.d_model)
+
+        encoder_config = copy.deepcopy(config)
+        encoder_config.is_decoder = False
+        encoder_config.use_cache = False
+        encoder_config.is_encoder_decoder = False
+        self.encoder = UMT5Stack(encoder_config, self.shared)
+
+        decoder_config = copy.deepcopy(config)
+        decoder_config.is_decoder = True
+        decoder_config.is_encoder_decoder = False
+        decoder_config.num_layers = config.num_decoder_layers
+        self.decoder = UMT5Stack(decoder_config, self.shared)
+
+        self.num_labels = config.num_labels
+        self.qa_outputs = nn.Linear(config.d_model, config.num_labels)
+
+        # Initialize weights and apply final processing
+        self.post_init()
+
+    # Copied from transformers.models.t5.modeling_t5.T5ForQuestionAnswering.get_input_embeddings
+    def get_input_embeddings(self):
+        return self.shared
+
+    # Copied from transformers.models.t5.modeling_t5.T5ForQuestionAnswering.set_input_embeddings
+    def set_input_embeddings(self, new_embeddings):
+        self.shared = new_embeddings
+        self.encoder.set_input_embeddings(new_embeddings)
+        self.decoder.set_input_embeddings(new_embeddings)
+
+    # Copied from transformers.models.t5.modeling_t5.T5ForQuestionAnswering._tie_weights
+    def _tie_weights(self):
+        if self.config.tie_word_embeddings:
+            self._tie_or_clone_weights(self.encoder.embed_tokens, self.shared)
+            self._tie_or_clone_weights(self.decoder.embed_tokens, self.shared)
+
+    # Copied from transformers.models.t5.modeling_t5.T5ForQuestionAnswering.get_encoder
+    def get_encoder(self):
+        return self.encoder
+
+    # Copied from transformers.models.t5.modeling_t5.T5ForQuestionAnswering.get_decoder
+    def get_decoder(self):
+        return self.decoder
+
+    @add_start_docstrings_to_model_forward(UMT5_INPUTS_DOCSTRING)
+    @replace_return_docstrings(output_type=Seq2SeqQuestionAnsweringModelOutput, config_class=_CONFIG_FOR_DOC)
+    def forward(
+        self,
+        input_ids: Optional[torch.LongTensor] = None,
+        attention_mask: Optional[torch.FloatTensor] = None,
+        decoder_input_ids: Optional[torch.LongTensor] = None,
+        decoder_attention_mask: Optional[torch.BoolTensor] = None,
+        head_mask: Optional[torch.FloatTensor] = None,
+        decoder_head_mask: Optional[torch.FloatTensor] = None,
+        cross_attn_head_mask: Optional[torch.Tensor] = None,
+        encoder_outputs: Optional[Tuple[Tuple[torch.Tensor]]] = None,
+        start_positions: Optional[torch.LongTensor] = None,
+        end_positions: Optional[torch.LongTensor] = None,
+        inputs_embeds: Optional[torch.FloatTensor] = None,
+        decoder_inputs_embeds: Optional[torch.FloatTensor] = None,
+        use_cache: Optional[bool] = None,
+        output_attentions: Optional[bool] = None,
+        output_hidden_states: Optional[bool] = None,
+        return_dict: Optional[bool] = None,
+    ) -> Union[Tuple[torch.FloatTensor], Seq2SeqQuestionAnsweringModelOutput]:
+        r"""
+        start_positions (`torch.LongTensor` of shape `(batch_size,)`, *optional*):
+            Labels for position (index) of the start of the labelled span for computing the token classification loss.
+            Positions are clamped to the length of the sequence (*sequence_length*). Position outside of the sequence
+            are not taken into account for computing the loss.
+        end_positions (`torch.LongTensor` of shape `(batch_size,)`, *optional*):
+            Labels for position (index) of the end of the labelled span for computing the token classification loss.
+            Positions are clamped to the length of the sequence (*sequence_length*). Position outside of the sequence
+            are not taken into account for computing the loss.
+        Returns:
+        """
+        return_dict = return_dict if return_dict is not None else self.config.use_return_dict
+        use_cache = use_cache if use_cache is not None else self.config.use_cache
+        if start_positions is not None and end_positions is not None:
+            use_cache = False
+
+        # Copied from models.bart.modeling_bart.BartModel.forward
+        #   different to other models, T5 automatically creates decoder_input_ids from
+        #   input_ids if no decoder_input_ids are provided
+        if decoder_input_ids is None and decoder_inputs_embeds is None:
+            if input_ids is None:
+                raise ValueError(
+                    "If no `decoder_input_ids` or `decoder_inputs_embeds` are "
+                    "passed, `input_ids` cannot be `None`. Please pass either "
+                    "`input_ids` or `decoder_input_ids` or `decoder_inputs_embeds`."
+                )
+            decoder_input_ids = self._shift_right(input_ids)
+
+        use_cache = use_cache if use_cache is not None else self.config.use_cache
+        return_dict = return_dict if return_dict is not None else self.config.use_return_dict
+
+        # Encode if needed (training, first prediction pass)
+        if encoder_outputs is None:
+            encoder_outputs = self.encoder(
+                input_ids=input_ids,
+                attention_mask=attention_mask,
+                inputs_embeds=inputs_embeds,
+                head_mask=head_mask,
+                output_attentions=output_attentions,
+                output_hidden_states=output_hidden_states,
+                return_dict=return_dict,
+            )
+        elif return_dict and not isinstance(encoder_outputs, BaseModelOutput):
+            encoder_outputs = BaseModelOutput(
+                last_hidden_state=encoder_outputs[0],
+                hidden_states=encoder_outputs[1] if len(encoder_outputs) > 1 else None,
+                attentions=encoder_outputs[2] if len(encoder_outputs) > 2 else None,
+            )
+
+        hidden_states = encoder_outputs[0]
+
+        # Decode
+        decoder_outputs = self.decoder(
+            input_ids=decoder_input_ids,
+            attention_mask=decoder_attention_mask,
+            inputs_embeds=decoder_inputs_embeds,
+            past_key_values=None,
+            encoder_hidden_states=hidden_states,
+            encoder_attention_mask=attention_mask,
+            head_mask=decoder_head_mask,
+            cross_attn_head_mask=cross_attn_head_mask,
+            use_cache=use_cache,
+            output_attentions=output_attentions,
+            output_hidden_states=output_hidden_states,
+            return_dict=return_dict,
+        )
+
+        sequence_output = decoder_outputs[0]
+
+        logits = self.qa_outputs(sequence_output)
+        start_logits, end_logits = logits.split(1, dim=-1)
+        start_logits = start_logits.squeeze(-1).contiguous()
+        end_logits = end_logits.squeeze(-1).contiguous()
+
+        total_loss = None
+        if start_positions is not None and end_positions is not None:
+            # If we are on multi-GPU, split add a dimension
+            if len(start_positions.size()) > 1:
+                start_positions = start_positions.squeeze(-1).to(start_logits.device)
+            if len(end_positions.size()) > 1:
+                end_positions = end_positions.squeeze(-1).to(end_logits.device)
+            # sometimes the start/end positions are outside our model inputs, we ignore these terms
+            ignored_index = start_logits.size(1)
+            start_positions = start_positions.clamp(0, ignored_index)
+            end_positions = end_positions.clamp(0, ignored_index)
+
+            loss_fct = CrossEntropyLoss(ignore_index=ignored_index)
+            start_loss = loss_fct(start_logits, start_positions)
+            end_loss = loss_fct(end_logits, end_positions)
+            total_loss = (start_loss + end_loss) / 2
+
+        if not return_dict:
+            output = (start_logits, end_logits) + decoder_outputs[1:] + encoder_outputs
+            return ((total_loss,) + output) if total_loss is not None else output
+
+        return Seq2SeqQuestionAnsweringModelOutput(
+            loss=total_loss,
+            start_logits=start_logits,
+            end_logits=end_logits,
+            past_key_values=decoder_outputs.past_key_values,
+            decoder_hidden_states=decoder_outputs.hidden_states,
+            decoder_attentions=decoder_outputs.attentions,
+            cross_attentions=decoder_outputs.cross_attentions,
+            encoder_last_hidden_state=encoder_outputs.last_hidden_state,
+            encoder_hidden_states=encoder_outputs.hidden_states,
+            encoder_attentions=encoder_outputs.attentions,
+        )

env-llmeval/lib/python3.10/site-packages/transformers/onnx/__init__.py

@@ -0,0 +1,49 @@
+# Copyright 2020 The HuggingFace Team. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from typing import TYPE_CHECKING
+
+from ..utils import _LazyModule
+
+
+_import_structure = {
+    "config": [
+        "EXTERNAL_DATA_FORMAT_SIZE_LIMIT",
+        "OnnxConfig",
+        "OnnxConfigWithPast",
+        "OnnxSeq2SeqConfigWithPast",
+        "PatchingSpec",
+    ],
+    "convert": ["export", "validate_model_outputs"],
+    "features": ["FeaturesManager"],
+    "utils": ["ParameterFormat", "compute_serialized_parameters_size"],
+}
+
+
+if TYPE_CHECKING:
+    from .config import (
+        EXTERNAL_DATA_FORMAT_SIZE_LIMIT,
+        OnnxConfig,
+        OnnxConfigWithPast,
+        OnnxSeq2SeqConfigWithPast,
+        PatchingSpec,
+    )
+    from .convert import export, validate_model_outputs
+    from .features import FeaturesManager
+    from .utils import ParameterFormat, compute_serialized_parameters_size
+
+else:
+    import sys
+
+    sys.modules[__name__] = _LazyModule(__name__, globals()["__file__"], _import_structure, module_spec=__spec__)

env-llmeval/lib/python3.10/site-packages/transformers/onnx/__main__.py

@@ -0,0 +1,242 @@
+# Copyright 2021 The HuggingFace Team. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+import subprocess
+import sys
+import warnings
+from argparse import ArgumentParser
+from pathlib import Path
+
+from packaging import version
+
+from .. import AutoFeatureExtractor, AutoImageProcessor, AutoProcessor, AutoTokenizer
+from ..utils import logging
+from ..utils.import_utils import is_optimum_available
+from .convert import export, validate_model_outputs
+from .features import FeaturesManager
+from .utils import get_preprocessor
+
+
+MIN_OPTIMUM_VERSION = "1.5.0"
+
+ENCODER_DECODER_MODELS = ["vision-encoder-decoder"]
+
+
+def export_with_optimum(args):
+    if is_optimum_available():
+        from optimum.version import __version__ as optimum_version
+
+        parsed_optimum_version = version.parse(optimum_version)
+        if parsed_optimum_version < version.parse(MIN_OPTIMUM_VERSION):
+            raise RuntimeError(
+                f"transformers.onnx requires optimum >= {MIN_OPTIMUM_VERSION} but {optimum_version} is installed. You "
+                "can upgrade optimum by running: pip install -U optimum[exporters]"
+            )
+    else:
+        raise RuntimeError(
+            "transformers.onnx requires optimum to run, you can install the library by running: pip install "
+            "optimum[exporters]"
+        )
+    cmd_line = [
+        sys.executable,
+        "-m",
+        "optimum.exporters.onnx",
+        f"--model {args.model}",
+        f"--task {args.feature}",
+        f"--framework {args.framework}" if args.framework is not None else "",
+        f"{args.output}",
+    ]
+    proc = subprocess.Popen(cmd_line, stdout=subprocess.PIPE)
+    proc.wait()
+
+    logger.info(
+        "The export was done by optimum.exporters.onnx. We recommend using to use this package directly in future, as "
+        "transformers.onnx is deprecated, and will be removed in v5. You can find more information here: "
+        "https://huggingface.co/docs/optimum/exporters/onnx/usage_guides/export_a_model."
+    )
+
+
+def export_with_transformers(args):
+    args.output = args.output if args.output.is_file() else args.output.joinpath("model.onnx")
+    if not args.output.parent.exists():
+        args.output.parent.mkdir(parents=True)
+
+    # Allocate the model
+    model = FeaturesManager.get_model_from_feature(
+        args.feature, args.model, framework=args.framework, cache_dir=args.cache_dir
+    )
+
+    model_kind, model_onnx_config = FeaturesManager.check_supported_model_or_raise(model, feature=args.feature)
+    onnx_config = model_onnx_config(model.config)
+
+    if model_kind in ENCODER_DECODER_MODELS:
+        encoder_model = model.get_encoder()
+        decoder_model = model.get_decoder()
+
+        encoder_onnx_config = onnx_config.get_encoder_config(encoder_model.config)
+        decoder_onnx_config = onnx_config.get_decoder_config(
+            encoder_model.config, decoder_model.config, feature=args.feature
+        )
+
+        if args.opset is None:
+            args.opset = max(encoder_onnx_config.default_onnx_opset, decoder_onnx_config.default_onnx_opset)
+
+        if args.opset < min(encoder_onnx_config.default_onnx_opset, decoder_onnx_config.default_onnx_opset):
+            raise ValueError(
+                f"Opset {args.opset} is not sufficient to export {model_kind}. At least "
+                f" {min(encoder_onnx_config.default_onnx_opset, decoder_onnx_config.default_onnx_opset)} is required."
+            )
+
+        preprocessor = AutoFeatureExtractor.from_pretrained(args.model)
+
+        onnx_inputs, onnx_outputs = export(
+            preprocessor,
+            encoder_model,
+            encoder_onnx_config,
+            args.opset,
+            args.output.parent.joinpath("encoder_model.onnx"),
+        )
+
+        validate_model_outputs(
+            encoder_onnx_config,
+            preprocessor,
+            encoder_model,
+            args.output.parent.joinpath("encoder_model.onnx"),
+            onnx_outputs,
+            args.atol if args.atol else encoder_onnx_config.atol_for_validation,
+        )
+
+        preprocessor = AutoTokenizer.from_pretrained(args.model)
+
+        onnx_inputs, onnx_outputs = export(
+            preprocessor,
+            decoder_model,
+            decoder_onnx_config,
+            args.opset,
+            args.output.parent.joinpath("decoder_model.onnx"),
+        )
+
+        validate_model_outputs(
+            decoder_onnx_config,
+            preprocessor,
+            decoder_model,
+            args.output.parent.joinpath("decoder_model.onnx"),
+            onnx_outputs,
+            args.atol if args.atol else decoder_onnx_config.atol_for_validation,
+        )
+        logger.info(
+            f"All good, model saved at: {args.output.parent.joinpath('encoder_model.onnx').as_posix()},"
+            f" {args.output.parent.joinpath('decoder_model.onnx').as_posix()}"
+        )
+
+    else:
+        # Instantiate the appropriate preprocessor
+        if args.preprocessor == "auto":
+            preprocessor = get_preprocessor(args.model)
+        elif args.preprocessor == "tokenizer":
+            preprocessor = AutoTokenizer.from_pretrained(args.model)
+        elif args.preprocessor == "image_processor":
+            preprocessor = AutoImageProcessor.from_pretrained(args.model)
+        elif args.preprocessor == "feature_extractor":
+            preprocessor = AutoFeatureExtractor.from_pretrained(args.model)
+        elif args.preprocessor == "processor":
+            preprocessor = AutoProcessor.from_pretrained(args.model)
+        else:
+            raise ValueError(f"Unknown preprocessor type '{args.preprocessor}'")
+
+        # Ensure the requested opset is sufficient
+        if args.opset is None:
+            args.opset = onnx_config.default_onnx_opset
+
+        if args.opset < onnx_config.default_onnx_opset:
+            raise ValueError(
+                f"Opset {args.opset} is not sufficient to export {model_kind}. "
+                f"At least  {onnx_config.default_onnx_opset} is required."
+            )
+
+        onnx_inputs, onnx_outputs = export(
+            preprocessor,
+            model,
+            onnx_config,
+            args.opset,
+            args.output,
+        )
+
+        if args.atol is None:
+            args.atol = onnx_config.atol_for_validation
+
+        validate_model_outputs(onnx_config, preprocessor, model, args.output, onnx_outputs, args.atol)
+        logger.info(f"All good, model saved at: {args.output.as_posix()}")
+        warnings.warn(
+            "The export was done by transformers.onnx which is deprecated and will be removed in v5. We recommend"
+            " using optimum.exporters.onnx in future. You can find more information here:"
+            " https://huggingface.co/docs/optimum/exporters/onnx/usage_guides/export_a_model.",
+            FutureWarning,
+        )
+
+
+def main():
+    parser = ArgumentParser("Hugging Face Transformers ONNX exporter")
+    parser.add_argument(
+        "-m", "--model", type=str, required=True, help="Model ID on huggingface.co or path on disk to load model from."
+    )
+    parser.add_argument(
+        "--feature",
+        default="default",
+        help="The type of features to export the model with.",
+    )
+    parser.add_argument("--opset", type=int, default=None, help="ONNX opset version to export the model with.")
+    parser.add_argument(
+        "--atol", type=float, default=None, help="Absolute difference tolerance when validating the model."
+    )
+    parser.add_argument(
+        "--framework",
+        type=str,
+        choices=["pt", "tf"],
+        default=None,
+        help=(
+            "The framework to use for the ONNX export."
+            " If not provided, will attempt to use the local checkpoint's original framework"
+            " or what is available in the environment."
+        ),
+    )
+    parser.add_argument("output", type=Path, help="Path indicating where to store generated ONNX model.")
+    parser.add_argument("--cache_dir", type=str, default=None, help="Path indicating where to store cache.")
+    parser.add_argument(
+        "--preprocessor",
+        type=str,
+        choices=["auto", "tokenizer", "feature_extractor", "image_processor", "processor"],
+        default="auto",
+        help="Which type of preprocessor to use. 'auto' tries to automatically detect it.",
+    )
+    parser.add_argument(
+        "--export_with_transformers",
+        action="store_true",
+        help=(
+            "Whether to use transformers.onnx instead of optimum.exporters.onnx to perform the ONNX export. It can be "
+            "useful when exporting a model supported in transformers but not in optimum, otherwise it is not "
+            "recommended."
+        ),
+    )
+
+    args = parser.parse_args()
+    if args.export_with_transformers or not is_optimum_available():
+        export_with_transformers(args)
+    else:
+        export_with_optimum(args)
+
+
+if __name__ == "__main__":
+    logger = logging.get_logger("transformers.onnx")  # pylint: disable=invalid-name
+    logger.setLevel(logging.INFO)
+    main()

env-llmeval/lib/python3.10/site-packages/transformers/onnx/config.py

@@ -0,0 +1,741 @@
+# Copyright 2021 The HuggingFace Team. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+import copy
+import dataclasses
+import warnings
+from abc import ABC, abstractmethod
+from collections import OrderedDict
+from typing import TYPE_CHECKING, Any, Callable, Dict, Iterable, List, Mapping, Optional, Tuple, Union
+
+import numpy as np
+from packaging import version
+
+from ..utils import TensorType, is_torch_available, is_vision_available, logging
+from .utils import ParameterFormat, compute_effective_axis_dimension, compute_serialized_parameters_size
+
+
+if TYPE_CHECKING:
+    from ..configuration_utils import PretrainedConfig
+    from ..feature_extraction_utils import FeatureExtractionMixin
+    from ..image_processing_utils import ImageProcessingMixin
+    from ..tokenization_utils_base import PreTrainedTokenizerBase
+
+
+if is_vision_available():
+    from PIL import Image
+
+logger = logging.get_logger(__name__)
+
+
+DEFAULT_ONNX_OPSET = 11
+
+# 2 Gb
+EXTERNAL_DATA_FORMAT_SIZE_LIMIT = 2 * 1024 * 1024 * 1024
+
+
+@dataclasses.dataclass
+class PatchingSpec:
+    """
+    Data class that holds patching specifications.
+
+    Args:
+        o: Module / object where the op to patch is located
+        name: Name of the op to monkey patch
+        custom_op: Custom op that patches the original op
+        orig_op: Original op that is being patched
+        op_wrapper: Wrapper (optional) that wraps both the original and custom ops.
+            It is useful for ops that are class or static methods for instance.
+    """
+
+    o: Any
+    name: str
+    custom_op: Callable
+    orig_op: Optional[Callable] = None
+    op_wrapper: Optional[Callable] = None
+
+
+class OnnxConfig(ABC):
+    """
+    Base class for ONNX exportable model describing metadata on how to export the model through the ONNX format.
+    """
+
+    default_fixed_batch = 2
+    default_fixed_sequence = 8
+    default_fixed_num_choices = 4
+    torch_onnx_minimum_version = version.parse("1.8")
+    _tasks_to_common_outputs = {
+        "causal-lm": OrderedDict({"logits": {0: "batch", 1: "sequence"}}),
+        "default": OrderedDict({"last_hidden_state": {0: "batch", 1: "sequence"}}),
+        "image-classification": OrderedDict({"logits": {0: "batch", 1: "sequence"}}),
+        "image-segmentation": OrderedDict(
+            {
+                "logits": {0: "batch", 1: "sequence"},
+                "pred_boxes": {0: "batch", 1: "sequence"},
+                "pred_masks": {0: "batch", 1: "sequence"},
+            }
+        ),
+        "masked-im": OrderedDict({"logits": {0: "batch", 1: "sequence"}}),
+        "masked-lm": OrderedDict({"logits": {0: "batch", 1: "sequence"}}),
+        "multiple-choice": OrderedDict({"logits": {0: "batch"}}),
+        "object-detection": OrderedDict(
+            {
+                "logits": {0: "batch", 1: "sequence"},
+                "pred_boxes": {0: "batch", 1: "sequence"},
+            }
+        ),
+        "question-answering": OrderedDict(
+            {
+                "start_logits": {0: "batch", 1: "sequence"},
+                "end_logits": {0: "batch", 1: "sequence"},
+            }
+        ),
+        "semantic-segmentation": OrderedDict({"logits": {0: "batch", 1: "num_labels", 2: "height", 3: "width"}}),
+        "seq2seq-lm": OrderedDict({"logits": {0: "batch", 1: "decoder_sequence"}}),
+        "sequence-classification": OrderedDict({"logits": {0: "batch"}}),
+        "token-classification": OrderedDict({"logits": {0: "batch", 1: "sequence"}}),
+        "vision2seq-lm": OrderedDict({"logits": {0: "batch", 1: "sequence"}}),
+        "speech2seq-lm": OrderedDict({"logits": {0: "batch", 1: "sequence"}}),
+    }
+
+    def __init__(self, config: "PretrainedConfig", task: str = "default", patching_specs: List[PatchingSpec] = None):
+        self._config = config
+
+        if task not in self._tasks_to_common_outputs:
+            raise ValueError(
+                f"{task} is not a supported task, supported tasks: {self._tasks_to_common_outputs.keys()}"
+            )
+        self.task = task
+
+        self._patching_specs = []
+        for spec in patching_specs if patching_specs is not None else []:
+            final_spec = spec
+            if spec.orig_op is None:
+                final_spec = dataclasses.replace(spec, orig_op=getattr(spec.o, spec.name))
+            self._patching_specs.append(final_spec)
+
+    @classmethod
+    def from_model_config(cls, config: "PretrainedConfig", task: str = "default") -> "OnnxConfig":
+        """
+        Instantiate a OnnxConfig for a specific model
+
+        Args:
+            config: The model's configuration to use when exporting to ONNX
+
+        Returns:
+            OnnxConfig for this model
+        """
+        return cls(config, task=task)
+
+    @property
+    @abstractmethod
+    def inputs(self) -> Mapping[str, Mapping[int, str]]:
+        """
+        Mapping containing the axis definition of the input tensors to provide to the model
+
+        Returns:
+            For each input: its name associated to the axes symbolic name and the axis position within the tensor
+        """
+        raise NotImplementedError()
+
+    @property
+    def outputs(self) -> Mapping[str, Mapping[int, str]]:
+        """
+        Mapping containing the axis definition of the output tensors to provide to the model
+
+        Returns:
+            For each output: its name associated to the axes symbolic name and the axis position within the tensor
+        """
+        common_outputs = self._tasks_to_common_outputs[self.task]
+        return copy.deepcopy(common_outputs)
+
+    @property
+    def values_override(self) -> Optional[Mapping[str, Any]]:
+        """
+        Dictionary of keys to override in the model's config before exporting
+
+        Returns:
+            Dictionary with the keys (and their corresponding values) to override
+        """
+        if hasattr(self._config, "use_cache"):
+            return {"use_cache": False}
+
+        return None
+
+    @property
+    def default_batch_size(self) -> int:
+        """
+        The default batch size to use if no other indication
+
+        Returns:
+            Integer > 0
+        """
+        # Using 2 avoid ONNX making assumption about single sample batch
+        return OnnxConfig.default_fixed_batch
+
+    @property
+    def default_sequence_length(self) -> int:
+        """
+        The default sequence length to use if no other indication
+
+        Returns:
+            Integer > 0
+        """
+        return OnnxConfig.default_fixed_sequence
+
+    @property
+    def default_num_choices(self) -> int:
+        """
+        The default number of choices to use if no other indication
+
+        Returns:
+            Integer > 0
+        """
+        return OnnxConfig.default_fixed_num_choices
+
+    @property
+    def default_onnx_opset(self) -> int:
+        """
+        Which onnx opset to use when exporting the model
+
+        Returns:
+            Integer ONNX Opset version
+        """
+        return DEFAULT_ONNX_OPSET
+
+    @property
+    def atol_for_validation(self) -> float:
+        """
+        What absolute tolerance value to use during model conversion validation.
+
+        Returns:
+            Float absolute tolerance value.
+        """
+        return 1e-5
+
+    @property
+    def is_torch_support_available(self) -> bool:
+        """
+        The minimum PyTorch version required to export the model.
+
+        Returns:
+            `bool`: Whether the installed version of PyTorch is compatible with the model.
+        """
+        if is_torch_available():
+            from transformers.utils import get_torch_version
+
+            return version.parse(get_torch_version()) >= self.torch_onnx_minimum_version
+        else:
+            return False
+
+    @staticmethod
+    def use_external_data_format(num_parameters: int) -> bool:
+        """
+        Flag indicating if the model requires using external data format
+
+        Args:
+            num_parameters: Number of parameter on the model
+
+        Returns:
+            True if model.num_parameters() * size_of(float32) >= 2Gb False otherwise
+        """
+
+        return (
+            compute_serialized_parameters_size(num_parameters, ParameterFormat.Float)
+            >= EXTERNAL_DATA_FORMAT_SIZE_LIMIT
+        )
+
+    def _generate_dummy_images(
+        self, batch_size: int = 2, num_channels: int = 3, image_height: int = 40, image_width: int = 40
+    ):
+        images = []
+        for _ in range(batch_size):
+            data = np.random.rand(image_height, image_width, num_channels) * 255
+            images.append(Image.fromarray(data.astype("uint8")).convert("RGB"))
+        return images
+
+    def _generate_dummy_audio(
+        self, batch_size: int = 2, sampling_rate: int = 22050, time_duration: float = 5.0, frequency: int = 220
+    ):
+        audio_data = []
+        for _ in range(batch_size):
+            # time variable
+            t = np.linspace(0, time_duration, int(time_duration * sampling_rate), endpoint=False)
+
+            # generate pure sine wave at `frequency` Hz
+            audio_data.append(0.5 * np.sin(2 * np.pi * frequency * t))
+
+        return audio_data
+
+    def generate_dummy_inputs(
+        self,
+        preprocessor: Union["PreTrainedTokenizerBase", "FeatureExtractionMixin", "ImageProcessingMixin"],
+        batch_size: int = -1,
+        seq_length: int = -1,
+        num_choices: int = -1,
+        is_pair: bool = False,
+        framework: Optional[TensorType] = None,
+        num_channels: int = 3,
+        image_width: int = 40,
+        image_height: int = 40,
+        sampling_rate: int = 22050,
+        time_duration: float = 5.0,
+        frequency: int = 220,
+        tokenizer: "PreTrainedTokenizerBase" = None,
+    ) -> Mapping[str, Any]:
+        """
+        Generate inputs to provide to the ONNX exporter for the specific framework
+
+        Args:
+            preprocessor: ([`PreTrainedTokenizerBase`], [`FeatureExtractionMixin`], or [`ImageProcessingMixin`]):
+                The preprocessor associated with this model configuration.
+            batch_size (`int`, *optional*, defaults to -1):
+                The batch size to export the model for (-1 means dynamic axis).
+            num_choices (`int`, *optional*, defaults to -1):
+                The number of candidate answers provided for multiple choice task (-1 means dynamic axis).
+            seq_length (`int`, *optional*, defaults to -1):
+                The sequence length to export the model for (-1 means dynamic axis).
+            is_pair (`bool`, *optional*, defaults to `False`):
+                Indicate if the input is a pair (sentence 1, sentence 2)
+            framework (`TensorType`, *optional*, defaults to `None`):
+                The framework (PyTorch or TensorFlow) that the tokenizer will generate tensors for.
+            num_channels (`int`, *optional*, defaults to 3):
+                The number of channels of the generated images.
+            image_width (`int`, *optional*, defaults to 40):
+                The width of the generated images.
+            image_height (`int`, *optional*, defaults to 40):
+                The height of the generated images.
+            sampling_rate (`int`, *optional* defaults to 22050)
+                The sampling rate for audio data generation.
+            time_duration (`float`, *optional* defaults to 5.0)
+                Total seconds of sampling for audio data generation.
+            frequency (`int`, *optional* defaults to 220)
+                The desired natural frequency of generated audio.
+
+        Returns:
+            Mapping[str, Tensor] holding the kwargs to provide to the model's forward function
+        """
+        from ..feature_extraction_utils import FeatureExtractionMixin
+        from ..image_processing_utils import ImageProcessingMixin
+        from ..tokenization_utils_base import PreTrainedTokenizerBase
+
+        if isinstance(preprocessor, PreTrainedTokenizerBase) and tokenizer is not None:
+            raise ValueError("You cannot provide both a tokenizer and a preprocessor to generate dummy inputs.")
+        if tokenizer is not None:
+            warnings.warn(
+                "The `tokenizer` argument is deprecated and will be removed in version 5 of Transformers. Use"
+                " `preprocessor` instead.",
+                FutureWarning,
+            )
+            logger.warning("Overwriting the `preprocessor` argument with `tokenizer` to generate dummmy inputs.")
+            preprocessor = tokenizer
+        if isinstance(preprocessor, PreTrainedTokenizerBase):
+            # If dynamic axis (-1) we forward with a fixed dimension of 2 samples to avoid optimizations made by ONNX
+            batch_size = compute_effective_axis_dimension(
+                batch_size, fixed_dimension=OnnxConfig.default_fixed_batch, num_token_to_add=0
+            )
+            # If dynamic axis (-1) we forward with a fixed dimension of 8 tokens to avoid optimizations made by ONNX
+            token_to_add = preprocessor.num_special_tokens_to_add(is_pair)
+            seq_length = compute_effective_axis_dimension(
+                seq_length, fixed_dimension=OnnxConfig.default_fixed_sequence, num_token_to_add=token_to_add
+            )
+            # Generate dummy inputs according to compute batch and sequence
+            input_token = (
+                preprocessor.unk_token
+                if (preprocessor.unk_token is not None and len(preprocessor.unk_token) > 0)
+                else "0"
+            )
+            dummy_input = [" ".join([input_token]) * seq_length] * batch_size
+            if self.task == "multiple-choice":
+                # If dynamic axis (-1) we forward with a fixed dimension of 4 candidate answers to avoid optimizations
+                # made by ONNX
+                num_choices = compute_effective_axis_dimension(
+                    num_choices, fixed_dimension=OnnxConfig.default_fixed_num_choices, num_token_to_add=0
+                )
+                dummy_input = dummy_input * num_choices
+                # The shape of the tokenized inputs values is [batch_size * num_choices, seq_length]
+                tokenized_input = preprocessor(dummy_input, text_pair=dummy_input)
+                # Unflatten the tokenized inputs values expanding it to the shape [batch_size, num_choices, seq_length]
+                for k, v in tokenized_input.items():
+                    tokenized_input[k] = [v[i : i + num_choices] for i in range(0, len(v), num_choices)]
+                return dict(tokenized_input.convert_to_tensors(tensor_type=framework))
+            return dict(preprocessor(dummy_input, return_tensors=framework))
+        elif isinstance(preprocessor, ImageProcessingMixin):
+            if preprocessor.model_input_names[0] != "pixel_values":
+                raise ValueError(
+                    f"The `preprocessor` is an image processor ({preprocessor.__class__.__name__}) and expects"
+                    f' `model_input_names[0]` to be "pixel_values", but got {preprocessor.model_input_names[0]}'
+                )
+            # If dynamic axis (-1) we forward with a fixed dimension of 2 samples to avoid optimizations made by ONNX
+            batch_size = compute_effective_axis_dimension(batch_size, fixed_dimension=OnnxConfig.default_fixed_batch)
+            dummy_input = self._generate_dummy_images(batch_size, num_channels, image_height, image_width)
+            return dict(preprocessor(images=dummy_input, return_tensors=framework))
+        elif isinstance(preprocessor, FeatureExtractionMixin) and preprocessor.model_input_names[0] == "pixel_values":
+            # If dynamic axis (-1) we forward with a fixed dimension of 2 samples to avoid optimizations made by ONNX
+            batch_size = compute_effective_axis_dimension(batch_size, fixed_dimension=OnnxConfig.default_fixed_batch)
+            dummy_input = self._generate_dummy_images(batch_size, num_channels, image_height, image_width)
+            return dict(preprocessor(images=dummy_input, return_tensors=framework))
+        elif (
+            isinstance(preprocessor, FeatureExtractionMixin) and preprocessor.model_input_names[0] == "input_features"
+        ):
+            # If dynamic axis (-1) we forward with a fixed dimension of 2 samples to avoid optimizations made by ONNX
+            batch_size = compute_effective_axis_dimension(batch_size, fixed_dimension=OnnxConfig.default_fixed_batch)
+            dummy_input = self._generate_dummy_audio(batch_size, sampling_rate, time_duration, frequency)
+            return dict(preprocessor(dummy_input, return_tensors=framework))
+        else:
+            raise ValueError(
+                "Unable to generate dummy inputs for the model. Please provide a tokenizer or a preprocessor."
+            )
+
+    def generate_dummy_inputs_onnxruntime(self, reference_model_inputs: Mapping[str, Any]) -> Mapping[str, Any]:
+        """
+        Generate inputs for ONNX Runtime using the reference model inputs. Override this to run inference with seq2seq
+        models which have the encoder and decoder exported as separate ONNX files.
+
+        Args:
+            reference_model_inputs ([`Mapping[str, Tensor]`):
+                Reference inputs for the model.
+
+        Returns:
+            `Mapping[str, Tensor]`: The mapping holding the kwargs to provide to the model's forward function
+        """
+        return reference_model_inputs
+
+    def patch_ops(self):
+        for spec in self._patching_specs:
+            custom_op = spec.custom_op if spec.op_wrapper is None else spec.op_wrapper(spec.custom_op)
+            setattr(spec.o, spec.name, custom_op)
+
+    def restore_ops(self):
+        for spec in self._patching_specs:
+            orig_op = spec.orig_op if spec.op_wrapper is None else spec.op_wrapper(spec.orig_op)
+            setattr(spec.o, spec.name, orig_op)
+
+    @classmethod
+    def flatten_output_collection_property(cls, name: str, field: Iterable[Any]) -> Dict[str, Any]:
+        """
+        Flatten any potential nested structure expanding the name of the field with the index of the element within the
+        structure.
+
+        Args:
+            name: The name of the nested structure
+            field: The structure to, potentially, be flattened
+
+        Returns:
+            (Dict[str, Any]): Outputs with flattened structure and key mapping this new structure.
+
+        """
+        from itertools import chain
+
+        return {f"{name}.{idx}": item for idx, item in enumerate(chain.from_iterable(field))}
+
+
+class OnnxConfigWithPast(OnnxConfig, ABC):
+    def __init__(
+        self,
+        config: "PretrainedConfig",
+        task: str = "default",
+        patching_specs: List[PatchingSpec] = None,
+        use_past: bool = False,
+    ):
+        super().__init__(config, task=task, patching_specs=patching_specs)
+        self.use_past = use_past
+
+    @classmethod
+    def with_past(cls, config: "PretrainedConfig", task: str = "default") -> "OnnxConfigWithPast":
+        """
+        Instantiate a OnnxConfig with `use_past` attribute set to True
+
+        Args:
+            config: The underlying model's config to use when exporting to ONNX
+
+        Returns:
+            OnnxConfig with `.use_past = True`
+        """
+        return cls(config, task=task, use_past=True)
+
+    @property
+    def outputs(self) -> Mapping[str, Mapping[int, str]]:
+        common_outputs = super().outputs
+        if self.use_past:
+            self.fill_with_past_key_values_(common_outputs, direction="outputs")
+
+        return common_outputs
+
+    @property
+    def values_override(self) -> Optional[Mapping[str, Any]]:
+        if hasattr(self._config, "use_cache"):
+            return {"use_cache": self.use_past}
+
+        return None
+
+    @property
+    def num_layers(self) -> int:
+        """
+        The number of layers attribute retrieved from the model config. Override this for model configs where the
+        number of layers attribute is not called `num_layers`.
+        """
+        if not hasattr(self._config, "num_layers"):
+            raise AttributeError(
+                "could not find the number of layers attribute in the model configuration, override the num_layers"
+                " property of the model OnnxConfig to solve this"
+            )
+        return self._config.num_layers
+
+    @property
+    def num_attention_heads(self) -> int:
+        """
+        The number of attention heads attribute retrieved from the model config. Override this for model configs where
+        the number of attention heads attribute is not called `num_attention_heads`.
+        """
+        if not hasattr(self._config, "num_attention_heads"):
+            raise AttributeError(
+                "could not find the number of attention heads attribute in the model configuration, override the"
+                " num_attention_heads property of the model OnnxConfig to solve this"
+            )
+        return self._config.num_attention_heads
+
+    def generate_dummy_inputs(
+        self,
+        tokenizer: "PreTrainedTokenizerBase",
+        batch_size: int = -1,
+        seq_length: int = -1,
+        is_pair: bool = False,
+        framework: Optional[TensorType] = None,
+    ) -> Mapping[str, Any]:
+        # TODO: should we set seq_length = 1 when self.use_past = True?
+        common_inputs = super().generate_dummy_inputs(
+            tokenizer, batch_size=batch_size, seq_length=seq_length, is_pair=is_pair, framework=framework
+        )
+
+        if self.use_past:
+            if not is_torch_available():
+                raise ValueError("Cannot generate dummy past_keys inputs without PyTorch installed.")
+            else:
+                import torch
+
+            batch, seqlen = common_inputs["input_ids"].shape
+            # Not using the same length for past_key_values
+            past_key_values_length = seqlen + 2
+            shape = (
+                batch,
+                self.num_attention_heads,
+                past_key_values_length,
+                self._config.hidden_size // self.num_attention_heads,
+            )
+
+            if "attention_mask" in common_inputs:
+                mask_dtype = common_inputs["attention_mask"].dtype
+                common_inputs["attention_mask"] = torch.cat(
+                    [common_inputs["attention_mask"], torch.ones(batch, past_key_values_length, dtype=mask_dtype)],
+                    dim=1,
+                )
+
+            common_inputs["past_key_values"] = []
+            for _ in range(self.num_layers):
+                common_inputs["past_key_values"].append((torch.zeros(shape), torch.zeros(shape)))
+
+        return common_inputs
+
+    def fill_with_past_key_values_(
+        self, inputs_or_outputs: Mapping[str, Mapping[int, str]], direction: str, inverted_values_shape: bool = False
+    ):
+        """
+        Fill the input_or_outputs mapping with past_key_values dynamic axes considering.
+
+        Args:
+            inputs_or_outputs: The mapping to fill.
+            direction: either "inputs" or "outputs", it specifies whether input_or_outputs is the input mapping or the
+                output mapping, this is important for axes naming.
+            inverted_values_shape:
+                If `True`, store values on dynamic axis 1, else on axis 2.
+
+        """
+        if direction not in ["inputs", "outputs"]:
+            raise ValueError(f'direction must either be "inputs" or "outputs", but {direction} was given')
+
+        name = "past_key_values" if direction == "inputs" else "present"
+        for i in range(self.num_layers):
+            inputs_or_outputs[f"{name}.{i}.key"] = {0: "batch", 2: "past_sequence + sequence"}
+            if inverted_values_shape:
+                inputs_or_outputs[f"{name}.{i}.value"] = {0: "batch", 1: "past_sequence + sequence"}
+            else:
+                inputs_or_outputs[f"{name}.{i}.value"] = {0: "batch", 2: "past_sequence + sequence"}
+
+    def _flatten_past_key_values_(self, flattened_output, name, idx, t):
+        flattened_output[f"{name}.{idx}.key"] = t[0]
+        flattened_output[f"{name}.{idx}.value"] = t[1]
+
+    def flatten_output_collection_property(self, name: str, field: Iterable[Any]) -> Dict[str, Any]:
+        flattened_output = {}
+        if name in ["present", "past_key_values"]:
+            for idx, t in enumerate(field):
+                self._flatten_past_key_values_(flattened_output, name, idx, t)
+        else:
+            flattened_output = super().flatten_output_collection_property(name, field)
+
+        return flattened_output
+
+
+class OnnxSeq2SeqConfigWithPast(OnnxConfigWithPast):
+    @property
+    def outputs(self) -> Mapping[str, Mapping[int, str]]:
+        common_outputs = super(OnnxConfigWithPast, self).outputs
+        # Renaming the outputs axes properly.
+        for name, axes_names in common_outputs.items():
+            sequence_name = "encoder_sequence" if "encoder" in name else "decoder_sequence"
+            for axis_idx, name in axes_names.items():
+                if "sequence" in name:
+                    axes_names[axis_idx] = sequence_name
+                # We reset the value as the order in common_outputs (OrderedDict) is lost otherwise
+                else:
+                    axes_names[axis_idx] = name
+        if self.use_past:
+            self.fill_with_past_key_values_(common_outputs, direction="outputs")
+
+        return common_outputs
+
+    @property
+    def num_layers(self) -> Tuple[int]:
+        try:
+            num_layers = super().num_layers
+            num_layers = (num_layers, num_layers)
+        except AttributeError:
+            if hasattr(self._config, "encoder_layers") and hasattr(self._config, "decoder_layers"):
+                num_layers = (self._config.encoder_layers, self._config.decoder_layers)
+            else:
+                raise AttributeError(
+                    "could not find the number of encoder and decoder layers attributes in the model configuration,"
+                    " override the num_layers property of the model OnnxConfig to solve this"
+                )
+
+        return num_layers
+
+    @property
+    def num_attention_heads(self) -> Tuple[int]:
+        try:
+            num_attention_heads = super().num_attention_heads
+            num_attention_heads = (num_attention_heads, num_attention_heads)
+        except AttributeError:
+            if hasattr(self._config, "encoder_attention_heads") and hasattr(self._config, "decoder_attention_heads"):
+                num_attention_heads = (self._config.encoder_attention_heads, self._config.decoder_attention_heads)
+            else:
+                raise AttributeError(
+                    "could not find the number of attention heads for the encoder and the decoder attributes in the"
+                    " model configuration, override the num_attention_heads property of the model OnnxConfig to solve"
+                    " this"
+                )
+        return num_attention_heads
+
+    def generate_dummy_inputs(
+        self,
+        tokenizer: "PreTrainedTokenizerBase",
+        batch_size: int = -1,
+        seq_length: int = -1,
+        is_pair: bool = False,
+        framework: Optional[TensorType] = None,
+    ) -> Mapping[str, Any]:
+        encoder_inputs = super(OnnxConfigWithPast, self).generate_dummy_inputs(
+            tokenizer, batch_size=batch_size, seq_length=seq_length, is_pair=is_pair, framework=framework
+        )
+
+        # Generate decoder inputs
+        decoder_seq_length = seq_length if not self.use_past else 1
+        decoder_inputs = super(OnnxConfigWithPast, self).generate_dummy_inputs(
+            tokenizer, batch_size=batch_size, seq_length=decoder_seq_length, is_pair=is_pair, framework=framework
+        )
+        decoder_inputs = {f"decoder_{name}": tensor for name, tensor in decoder_inputs.items()}
+        common_inputs = dict(**encoder_inputs, **decoder_inputs)
+
+        if self.use_past:
+            if not is_torch_available():
+                raise ValueError("Cannot generate dummy past_keys inputs without PyTorch installed.")
+            else:
+                import torch
+            batch = common_inputs["input_ids"].shape[0]
+            encoder_seq_length = common_inputs["input_ids"].shape[1]
+            decoder_seq_length = common_inputs["decoder_input_ids"].shape[1]
+            num_encoder_attention_heads, num_decoder_attention_heads = self.num_attention_heads
+            encoder_shape = (
+                batch,
+                num_encoder_attention_heads,
+                encoder_seq_length,
+                self._config.hidden_size // num_encoder_attention_heads,
+            )
+            decoder_shape = (
+                batch,
+                num_decoder_attention_heads,
+                # Not using the same length for past_key_values
+                decoder_seq_length + 3,
+                self._config.hidden_size // num_decoder_attention_heads,
+            )
+
+            common_inputs["past_key_values"] = []
+            # If the number of encoder and decoder layers are present in the model configuration, both are considered
+            num_encoder_layers, num_decoder_layers = self.num_layers
+            min_num_layers = min(num_encoder_layers, num_decoder_layers)
+            max_num_layers = max(num_encoder_layers, num_decoder_layers) - min_num_layers
+            remaining_side_name = "encoder" if num_encoder_layers > num_decoder_layers else "decoder"
+
+            for _ in range(min_num_layers):
+                # For encoder-decoder models, past_key_values contains pre-computed values for both the encoder and the
+                # decoder layers, hence a tuple of 4 tensors instead of 2
+                common_inputs["past_key_values"].append(
+                    (
+                        torch.zeros(decoder_shape),
+                        torch.zeros(decoder_shape),
+                        torch.zeros(encoder_shape),
+                        torch.zeros(encoder_shape),
+                    )
+                )
+
+            # TODO: test this.
+            shape = encoder_shape if remaining_side_name == "encoder" else decoder_shape
+            for _ in range(min_num_layers, max_num_layers):
+                common_inputs["past_key_values"].append((torch.zeros(shape), torch.zeros(shape)))
+
+        return common_inputs
+
+    def fill_with_past_key_values_(self, inputs_or_outputs: Mapping[str, Mapping[int, str]], direction: str):
+        if direction not in ["inputs", "outputs"]:
+            raise ValueError(f'direction must either be "inputs" or "outputs", but {direction} was given')
+
+        name = "past_key_values" if direction == "inputs" else "present"
+
+        # If the number of encoder and decoder layers are present in the model configuration, both are considered
+        num_encoder_layers, num_decoder_layers = self.num_layers
+        min_num_layers = min(num_encoder_layers, num_decoder_layers)
+        max_num_layers = max(num_encoder_layers, num_decoder_layers) - min_num_layers
+        remaining_side_name = "encoder" if num_encoder_layers > num_decoder_layers else "decoder"
+
+        encoder_sequence = "past_encoder_sequence"
+        decoder_sequence = "past_decoder_sequence" if direction == "inputs" else "past_decoder_sequence + sequence"
+
+        for i in range(min_num_layers):
+            inputs_or_outputs[f"{name}.{i}.decoder.key"] = {0: "batch", 2: decoder_sequence}
+            inputs_or_outputs[f"{name}.{i}.decoder.value"] = {0: "batch", 2: decoder_sequence}
+            inputs_or_outputs[f"{name}.{i}.encoder.key"] = {0: "batch", 2: encoder_sequence}
+            inputs_or_outputs[f"{name}.{i}.encoder.value"] = {0: "batch", 2: encoder_sequence}
+
+        for i in range(min_num_layers, max_num_layers):
+            if remaining_side_name == "encoder":
+                axes_info = {0: "batch", 2: encoder_sequence}
+            else:
+                axes_info = {0: "batch", 2: decoder_sequence}
+            inputs_or_outputs[f"{name}.{i}.{remaining_side_name}.key"] = axes_info
+
+    def _flatten_past_key_values_(self, flattened_output, name, idx, t):
+        flattened_output[f"{name}.{idx}.decoder.key"] = t[0]
+        flattened_output[f"{name}.{idx}.decoder.value"] = t[1]
+        flattened_output[f"{name}.{idx}.encoder.key"] = t[2]
+        flattened_output[f"{name}.{idx}.encoder.value"] = t[3]

env-llmeval/lib/python3.10/site-packages/transformers/onnx/convert.py

@@ -0,0 +1,460 @@
+# Copyright 2021 The HuggingFace Team. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import warnings
+from inspect import signature
+from itertools import chain
+from pathlib import Path
+from typing import TYPE_CHECKING, Iterable, List, Tuple, Union
+
+import numpy as np
+from packaging.version import Version, parse
+
+from ..tokenization_utils_base import PreTrainedTokenizerBase
+from ..utils import (
+    TensorType,
+    is_tf_available,
+    is_torch_available,
+    logging,
+)
+from .config import OnnxConfig
+
+
+if is_torch_available():
+    from ..modeling_utils import PreTrainedModel
+
+if is_tf_available():
+    from ..modeling_tf_utils import TFPreTrainedModel
+
+if TYPE_CHECKING:
+    from ..feature_extraction_utils import FeatureExtractionMixin
+    from ..processing_utils import ProcessorMixin
+    from ..tokenization_utils import PreTrainedTokenizer
+
+
+logger = logging.get_logger(__name__)  # pylint: disable=invalid-name
+
+
+# This is the minimal required version to support some ONNX Runtime features
+ORT_QUANTIZE_MINIMUM_VERSION = parse("1.4.0")
+
+
+def check_onnxruntime_requirements(minimum_version: Version):
+    """
+    Check onnxruntime is installed and if the installed version match is recent enough
+
+    Raises:
+        ImportError: If onnxruntime is not installed or too old version is found
+    """
+    try:
+        import onnxruntime
+
+        # Parse the version of the installed onnxruntime
+        ort_version = parse(onnxruntime.__version__)
+
+        # We require 1.4.0 minimum
+        if ort_version < ORT_QUANTIZE_MINIMUM_VERSION:
+            raise ImportError(
+                f"We found an older version of onnxruntime ({onnxruntime.__version__}) "
+                f"but we require onnxruntime to be >= {minimum_version} to enable all the conversions options.\n"
+                "Please update onnxruntime by running `pip install --upgrade onnxruntime`"
+            )
+
+    except ImportError:
+        raise ImportError(
+            "onnxruntime doesn't seem to be currently installed. "
+            "Please install the onnxruntime by running `pip install onnxruntime`"
+            " and relaunch the conversion."
+        )
+
+
+def export_pytorch(
+    preprocessor: Union["PreTrainedTokenizer", "FeatureExtractionMixin", "ProcessorMixin"],
+    model: "PreTrainedModel",
+    config: OnnxConfig,
+    opset: int,
+    output: Path,
+    tokenizer: "PreTrainedTokenizer" = None,
+    device: str = "cpu",
+) -> Tuple[List[str], List[str]]:
+    """
+    Export a PyTorch model to an ONNX Intermediate Representation (IR)
+
+    Args:
+        preprocessor: ([`PreTrainedTokenizer`], [`FeatureExtractionMixin`] or [`ProcessorMixin`]):
+            The preprocessor used for encoding the data.
+        model ([`PreTrainedModel`]):
+            The model to export.
+        config ([`~onnx.config.OnnxConfig`]):
+            The ONNX configuration associated with the exported model.
+        opset (`int`):
+            The version of the ONNX operator set to use.
+        output (`Path`):
+            Directory to store the exported ONNX model.
+        device (`str`, *optional*, defaults to `cpu`):
+            The device on which the ONNX model will be exported. Either `cpu` or `cuda`.
+
+    Returns:
+        `Tuple[List[str], List[str]]`: A tuple with an ordered list of the model's inputs, and the named inputs from
+        the ONNX configuration.
+    """
+
+    if isinstance(preprocessor, PreTrainedTokenizerBase) and tokenizer is not None:
+        raise ValueError("You cannot provide both a tokenizer and a preprocessor to export the model.")
+    if tokenizer is not None:
+        warnings.warn(
+            "The `tokenizer` argument is deprecated and will be removed in version 5 of Transformers. Use"
+            " `preprocessor` instead.",
+            FutureWarning,
+        )
+        logger.info("Overwriting the `preprocessor` argument with `tokenizer` to generate dummmy inputs.")
+        preprocessor = tokenizer
+
+    if issubclass(type(model), PreTrainedModel):
+        import torch
+        from torch.onnx import export as onnx_export
+
+        logger.info(f"Using framework PyTorch: {torch.__version__}")
+        with torch.no_grad():
+            model.config.return_dict = True
+            model.eval()
+
+            # Check if we need to override certain configuration item
+            if config.values_override is not None:
+                logger.info(f"Overriding {len(config.values_override)} configuration item(s)")
+                for override_config_key, override_config_value in config.values_override.items():
+                    logger.info(f"\t- {override_config_key} -> {override_config_value}")
+                    setattr(model.config, override_config_key, override_config_value)
+
+            # Ensure inputs match
+            # TODO: Check when exporting QA we provide "is_pair=True"
+            model_inputs = config.generate_dummy_inputs(preprocessor, framework=TensorType.PYTORCH)
+            device = torch.device(device)
+            if device.type == "cuda" and torch.cuda.is_available():
+                model.to(device)
+                model_inputs_device = {}
+                for k, v in model_inputs.items():
+                    if isinstance(v, Tuple):
+                        model_inputs_device[k] = tuple(
+                            x.to(device) if isinstance(x, torch.Tensor) else None for x in v
+                        )
+                    elif isinstance(v, List):
+                        model_inputs_device[k] = [
+                            tuple(x.to(device) if isinstance(x, torch.Tensor) else None for x in t) for t in v
+                        ]
+                    else:
+                        model_inputs_device[k] = v.to(device)
+
+                model_inputs = model_inputs_device
+
+            inputs_match, matched_inputs = ensure_model_and_config_inputs_match(model, model_inputs.keys())
+            onnx_outputs = list(config.outputs.keys())
+
+            if not inputs_match:
+                raise ValueError("Model and config inputs doesn't match")
+
+            config.patch_ops()
+
+            onnx_export(
+                model,
+                (model_inputs,),
+                f=output.as_posix(),
+                input_names=list(config.inputs.keys()),
+                output_names=onnx_outputs,
+                dynamic_axes=dict(chain(config.inputs.items(), config.outputs.items())),
+                do_constant_folding=True,
+                opset_version=opset,
+            )
+
+            config.restore_ops()
+
+    return matched_inputs, onnx_outputs
+
+
+def export_tensorflow(
+    preprocessor: Union["PreTrainedTokenizer", "FeatureExtractionMixin"],
+    model: "TFPreTrainedModel",
+    config: OnnxConfig,
+    opset: int,
+    output: Path,
+    tokenizer: "PreTrainedTokenizer" = None,
+) -> Tuple[List[str], List[str]]:
+    """
+    Export a TensorFlow model to an ONNX Intermediate Representation (IR)
+
+    Args:
+        preprocessor: ([`PreTrainedTokenizer`] or [`FeatureExtractionMixin`]):
+            The preprocessor used for encoding the data.
+        model ([`TFPreTrainedModel`]):
+            The model to export.
+        config ([`~onnx.config.OnnxConfig`]):
+            The ONNX configuration associated with the exported model.
+        opset (`int`):
+            The version of the ONNX operator set to use.
+        output (`Path`):
+            Directory to store the exported ONNX model.
+
+    Returns:
+        `Tuple[List[str], List[str]]`: A tuple with an ordered list of the model's inputs, and the named inputs from
+        the ONNX configuration.
+    """
+    import onnx
+    import tensorflow as tf
+    import tf2onnx
+
+    if isinstance(preprocessor, PreTrainedTokenizerBase) and tokenizer is not None:
+        raise ValueError("You cannot provide both a tokenizer and preprocessor to export the model.")
+    if tokenizer is not None:
+        warnings.warn(
+            "The `tokenizer` argument is deprecated and will be removed in version 5 of Transformers. Use"
+            " `preprocessor` instead.",
+            FutureWarning,
+        )
+        logger.info("Overwriting the `preprocessor` argument with `tokenizer` to generate dummmy inputs.")
+        preprocessor = tokenizer
+
+    model.config.return_dict = True
+
+    # Check if we need to override certain configuration item
+    if config.values_override is not None:
+        logger.info(f"Overriding {len(config.values_override)} configuration item(s)")
+        for override_config_key, override_config_value in config.values_override.items():
+            logger.info(f"\t- {override_config_key} -> {override_config_value}")
+            setattr(model.config, override_config_key, override_config_value)
+
+    # Ensure inputs match
+    model_inputs = config.generate_dummy_inputs(preprocessor, framework=TensorType.TENSORFLOW)
+    inputs_match, matched_inputs = ensure_model_and_config_inputs_match(model, model_inputs.keys())
+    onnx_outputs = list(config.outputs.keys())
+
+    input_signature = [
+        tf.TensorSpec([None] * tensor.ndim, dtype=tensor.dtype, name=key) for key, tensor in model_inputs.items()
+    ]
+    onnx_model, _ = tf2onnx.convert.from_keras(model, input_signature, opset=opset)
+    onnx.save(onnx_model, output.as_posix())
+    config.restore_ops()
+
+    return matched_inputs, onnx_outputs
+
+
+def export(
+    preprocessor: Union["PreTrainedTokenizer", "FeatureExtractionMixin", "ProcessorMixin"],
+    model: Union["PreTrainedModel", "TFPreTrainedModel"],
+    config: OnnxConfig,
+    opset: int,
+    output: Path,
+    tokenizer: "PreTrainedTokenizer" = None,
+    device: str = "cpu",
+) -> Tuple[List[str], List[str]]:
+    """
+    Export a Pytorch or TensorFlow model to an ONNX Intermediate Representation (IR)
+
+    Args:
+        preprocessor: ([`PreTrainedTokenizer`], [`FeatureExtractionMixin`] or [`ProcessorMixin`]):
+            The preprocessor used for encoding the data.
+        model ([`PreTrainedModel`] or [`TFPreTrainedModel`]):
+            The model to export.
+        config ([`~onnx.config.OnnxConfig`]):
+            The ONNX configuration associated with the exported model.
+        opset (`int`):
+            The version of the ONNX operator set to use.
+        output (`Path`):
+            Directory to store the exported ONNX model.
+        device (`str`, *optional*, defaults to `cpu`):
+            The device on which the ONNX model will be exported. Either `cpu` or `cuda`. Only PyTorch is supported for
+            export on CUDA devices.
+
+    Returns:
+        `Tuple[List[str], List[str]]`: A tuple with an ordered list of the model's inputs, and the named inputs from
+        the ONNX configuration.
+    """
+    if not (is_torch_available() or is_tf_available()):
+        raise ImportError(
+            "Cannot convert because neither PyTorch nor TensorFlow are not installed. "
+            "Please install torch or tensorflow first."
+        )
+
+    if is_tf_available() and isinstance(model, TFPreTrainedModel) and device == "cuda":
+        raise RuntimeError("`tf2onnx` does not support export on CUDA device.")
+
+    if isinstance(preprocessor, PreTrainedTokenizerBase) and tokenizer is not None:
+        raise ValueError("You cannot provide both a tokenizer and a preprocessor to export the model.")
+    if tokenizer is not None:
+        warnings.warn(
+            "The `tokenizer` argument is deprecated and will be removed in version 5 of Transformers. Use"
+            " `preprocessor` instead.",
+            FutureWarning,
+        )
+        logger.info("Overwriting the `preprocessor` argument with `tokenizer` to generate dummmy inputs.")
+        preprocessor = tokenizer
+
+    if is_torch_available():
+        from ..utils import get_torch_version
+
+        if not config.is_torch_support_available:
+            logger.warning(
+                f"Unsupported PyTorch version for this model. Minimum required is {config.torch_onnx_minimum_version},"
+                f" got: {get_torch_version()}"
+            )
+
+    if is_torch_available() and issubclass(type(model), PreTrainedModel):
+        return export_pytorch(preprocessor, model, config, opset, output, tokenizer=tokenizer, device=device)
+    elif is_tf_available() and issubclass(type(model), TFPreTrainedModel):
+        return export_tensorflow(preprocessor, model, config, opset, output, tokenizer=tokenizer)
+
+
+def validate_model_outputs(
+    config: OnnxConfig,
+    preprocessor: Union["PreTrainedTokenizer", "FeatureExtractionMixin", "ProcessorMixin"],
+    reference_model: Union["PreTrainedModel", "TFPreTrainedModel"],
+    onnx_model: Path,
+    onnx_named_outputs: List[str],
+    atol: float,
+    tokenizer: "PreTrainedTokenizer" = None,
+):
+    from onnxruntime import InferenceSession, SessionOptions
+
+    logger.info("Validating ONNX model...")
+
+    if isinstance(preprocessor, PreTrainedTokenizerBase) and tokenizer is not None:
+        raise ValueError("You cannot provide both a tokenizer and a preprocessor to validate the model outputs.")
+    if tokenizer is not None:
+        warnings.warn(
+            "The `tokenizer` argument is deprecated and will be removed in version 5 of Transformers. Use"
+            " `preprocessor` instead.",
+            FutureWarning,
+        )
+        logger.info("Overwriting the `preprocessor` argument with `tokenizer` to generate dummmy inputs.")
+        preprocessor = tokenizer
+
+    # generate inputs with a different batch_size and seq_len that was used for conversion to properly test
+    # dynamic input shapes.
+    if is_torch_available() and issubclass(type(reference_model), PreTrainedModel):
+        reference_model_inputs = config.generate_dummy_inputs(
+            preprocessor,
+            batch_size=config.default_fixed_batch + 1,
+            seq_length=config.default_fixed_sequence + 1,
+            framework=TensorType.PYTORCH,
+        )
+    else:
+        reference_model_inputs = config.generate_dummy_inputs(
+            preprocessor,
+            batch_size=config.default_fixed_batch + 1,
+            seq_length=config.default_fixed_sequence + 1,
+            framework=TensorType.TENSORFLOW,
+        )
+
+    # Create ONNX Runtime session
+    options = SessionOptions()
+    session = InferenceSession(onnx_model.as_posix(), options, providers=["CPUExecutionProvider"])
+
+    # Compute outputs from the reference model
+    if is_torch_available() and issubclass(type(reference_model), PreTrainedModel):
+        reference_model.to("cpu")
+    ref_outputs = reference_model(**reference_model_inputs)
+    ref_outputs_dict = {}
+
+    # We flatten potential collection of outputs (i.e. past_keys) to a flat structure
+    for name, value in ref_outputs.items():
+        # Overwriting the output name as "present" since it is the name used for the ONNX outputs
+        # ("past_key_values" being taken for the ONNX inputs)
+        if name == "past_key_values":
+            name = "present"
+        if isinstance(value, (list, tuple)):
+            value = config.flatten_output_collection_property(name, value)
+            ref_outputs_dict.update(value)
+        else:
+            ref_outputs_dict[name] = value
+
+    # Create onnxruntime inputs from the reference model inputs
+    reference_model_inputs_onnxruntime = config.generate_dummy_inputs_onnxruntime(reference_model_inputs)
+
+    # We flatten potential collection of inputs (i.e. past_keys)
+    onnx_inputs = {}
+    for name, value in reference_model_inputs_onnxruntime.items():
+        if isinstance(value, (list, tuple)):
+            value = config.flatten_output_collection_property(name, value)
+            onnx_inputs.update({tensor_name: pt_tensor.numpy() for tensor_name, pt_tensor in value.items()})
+        else:
+            onnx_inputs[name] = value.numpy()
+
+    # Compute outputs from the ONNX model
+    onnx_outputs = session.run(onnx_named_outputs, onnx_inputs)
+
+    # Check we have a subset of the keys into onnx_outputs against ref_outputs
+    ref_outputs_set, onnx_outputs_set = set(ref_outputs_dict.keys()), set(onnx_named_outputs)
+    if not onnx_outputs_set.issubset(ref_outputs_set):
+        logger.info(
+            f"\t-[x] ONNX model output names {onnx_outputs_set} do not match reference model {ref_outputs_set}"
+        )
+
+        raise ValueError(
+            "Outputs doesn't match between reference model and ONNX exported model: "
+            f"{onnx_outputs_set.difference(ref_outputs_set)}"
+        )
+    else:
+        logger.info(f"\t-[✓] ONNX model output names match reference model ({onnx_outputs_set})")
+
+    # Check the shape and values match
+    for name, ort_value in zip(onnx_named_outputs, onnx_outputs):
+        if is_torch_available() and issubclass(type(reference_model), PreTrainedModel):
+            ref_value = ref_outputs_dict[name].detach().numpy()
+        else:
+            ref_value = ref_outputs_dict[name].numpy()
+        logger.info(f'\t- Validating ONNX Model output "{name}":')
+
+        # Shape
+        if not ort_value.shape == ref_value.shape:
+            logger.info(f"\t\t-[x] shape {ort_value.shape} doesn't match {ref_value.shape}")
+            raise ValueError(
+                "Outputs shape doesn't match between reference model and ONNX exported model: "
+                f"Got {ref_value.shape} (reference) and {ort_value.shape} (ONNX)"
+            )
+        else:
+            logger.info(f"\t\t-[✓] {ort_value.shape} matches {ref_value.shape}")
+
+        # Values
+        if not np.allclose(ref_value, ort_value, atol=atol):
+            bad_indices = np.logical_not(np.isclose(ref_value, ort_value, atol=atol))
+            logger.info(f"\t\t-[x] values not close enough (atol: {atol})")
+            raise ValueError(
+                "Outputs values doesn't match between reference model and ONNX exported model: "
+                f"Got max absolute difference of: {np.amax(np.abs(ref_value - ort_value))} for "
+                f"{ref_value[bad_indices]} vs {ort_value[bad_indices]}"
+            )
+        else:
+            logger.info(f"\t\t-[✓] all values close (atol: {atol})")
+
+
+def ensure_model_and_config_inputs_match(
+    model: Union["PreTrainedModel", "TFPreTrainedModel"], model_inputs: Iterable[str]
+) -> Tuple[bool, List[str]]:
+    """
+
+    :param model_inputs: :param config_inputs: :return:
+    """
+    if is_torch_available() and issubclass(type(model), PreTrainedModel):
+        forward_parameters = signature(model.forward).parameters
+    else:
+        forward_parameters = signature(model.call).parameters
+    model_inputs_set = set(model_inputs)
+
+    # We are fine if config_inputs has more keys than model_inputs
+    forward_inputs_set = set(forward_parameters.keys())
+    is_ok = model_inputs_set.issubset(forward_inputs_set)
+
+    # Make sure the input order match (VERY IMPORTANT !!!!)
+    matching_inputs = forward_inputs_set.intersection(model_inputs_set)
+    ordered_inputs = [parameter for parameter in forward_parameters.keys() if parameter in matching_inputs]
+    return is_ok, ordered_inputs

env-llmeval/lib/python3.10/site-packages/transformers/onnx/features.py

@@ -0,0 +1,749 @@
+import os
+from functools import partial, reduce
+from typing import TYPE_CHECKING, Callable, Dict, Optional, Tuple, Type, Union
+
+import transformers
+
+from .. import PretrainedConfig, is_tf_available, is_torch_available
+from ..utils import TF2_WEIGHTS_NAME, WEIGHTS_NAME, logging
+from .config import OnnxConfig
+
+
+if TYPE_CHECKING:
+    from transformers import PreTrainedModel, TFPreTrainedModel
+
+
+logger = logging.get_logger(__name__)  # pylint: disable=invalid-name
+
+if is_torch_available():
+    from transformers.models.auto import (
+        AutoModel,
+        AutoModelForCausalLM,
+        AutoModelForImageClassification,
+        AutoModelForImageSegmentation,
+        AutoModelForMaskedImageModeling,
+        AutoModelForMaskedLM,
+        AutoModelForMultipleChoice,
+        AutoModelForObjectDetection,
+        AutoModelForQuestionAnswering,
+        AutoModelForSemanticSegmentation,
+        AutoModelForSeq2SeqLM,
+        AutoModelForSequenceClassification,
+        AutoModelForSpeechSeq2Seq,
+        AutoModelForTokenClassification,
+        AutoModelForVision2Seq,
+    )
+if is_tf_available():
+    from transformers.models.auto import (
+        TFAutoModel,
+        TFAutoModelForCausalLM,
+        TFAutoModelForMaskedLM,
+        TFAutoModelForMultipleChoice,
+        TFAutoModelForQuestionAnswering,
+        TFAutoModelForSemanticSegmentation,
+        TFAutoModelForSeq2SeqLM,
+        TFAutoModelForSequenceClassification,
+        TFAutoModelForTokenClassification,
+    )
+if not is_torch_available() and not is_tf_available():
+    logger.warning(
+        "The ONNX export features are only supported for PyTorch or TensorFlow. You will not be able to export models"
+        " without one of these libraries installed."
+    )
+
+
+def supported_features_mapping(
+    *supported_features: str, onnx_config_cls: str = None
+) -> Dict[str, Callable[[PretrainedConfig], OnnxConfig]]:
+    """
+    Generate the mapping between supported the features and their corresponding OnnxConfig for a given model.
+
+    Args:
+        *supported_features: The names of the supported features.
+        onnx_config_cls: The OnnxConfig full name corresponding to the model.
+
+    Returns:
+        The dictionary mapping a feature to an OnnxConfig constructor.
+    """
+    if onnx_config_cls is None:
+        raise ValueError("A OnnxConfig class must be provided")
+
+    config_cls = transformers
+    for attr_name in onnx_config_cls.split("."):
+        config_cls = getattr(config_cls, attr_name)
+    mapping = {}
+    for feature in supported_features:
+        if "-with-past" in feature:
+            task = feature.replace("-with-past", "")
+            mapping[feature] = partial(config_cls.with_past, task=task)
+        else:
+            mapping[feature] = partial(config_cls.from_model_config, task=feature)
+
+    return mapping
+
+
+class FeaturesManager:
+    _TASKS_TO_AUTOMODELS = {}
+    _TASKS_TO_TF_AUTOMODELS = {}
+    if is_torch_available():
+        _TASKS_TO_AUTOMODELS = {
+            "default": AutoModel,
+            "masked-lm": AutoModelForMaskedLM,
+            "causal-lm": AutoModelForCausalLM,
+            "seq2seq-lm": AutoModelForSeq2SeqLM,
+            "sequence-classification": AutoModelForSequenceClassification,
+            "token-classification": AutoModelForTokenClassification,
+            "multiple-choice": AutoModelForMultipleChoice,
+            "object-detection": AutoModelForObjectDetection,
+            "question-answering": AutoModelForQuestionAnswering,
+            "image-classification": AutoModelForImageClassification,
+            "image-segmentation": AutoModelForImageSegmentation,
+            "masked-im": AutoModelForMaskedImageModeling,
+            "semantic-segmentation": AutoModelForSemanticSegmentation,
+            "vision2seq-lm": AutoModelForVision2Seq,
+            "speech2seq-lm": AutoModelForSpeechSeq2Seq,
+        }
+    if is_tf_available():
+        _TASKS_TO_TF_AUTOMODELS = {
+            "default": TFAutoModel,
+            "masked-lm": TFAutoModelForMaskedLM,
+            "causal-lm": TFAutoModelForCausalLM,
+            "seq2seq-lm": TFAutoModelForSeq2SeqLM,
+            "sequence-classification": TFAutoModelForSequenceClassification,
+            "token-classification": TFAutoModelForTokenClassification,
+            "multiple-choice": TFAutoModelForMultipleChoice,
+            "question-answering": TFAutoModelForQuestionAnswering,
+            "semantic-segmentation": TFAutoModelForSemanticSegmentation,
+        }
+
+    # Set of model topologies we support associated to the features supported by each topology and the factory
+    _SUPPORTED_MODEL_TYPE = {
+        "albert": supported_features_mapping(
+            "default",
+            "masked-lm",
+            "sequence-classification",
+            "multiple-choice",
+            "token-classification",
+            "question-answering",
+            onnx_config_cls="models.albert.AlbertOnnxConfig",
+        ),
+        "bart": supported_features_mapping(
+            "default",
+            "default-with-past",
+            "causal-lm",
+            "causal-lm-with-past",
+            "seq2seq-lm",
+            "seq2seq-lm-with-past",
+            "sequence-classification",
+            "question-answering",
+            onnx_config_cls="models.bart.BartOnnxConfig",
+        ),
+        # BEiT cannot be used with the masked image modeling autoclass, so this feature is excluded here
+        "beit": supported_features_mapping(
+            "default", "image-classification", onnx_config_cls="models.beit.BeitOnnxConfig"
+        ),
+        "bert": supported_features_mapping(
+            "default",
+            "masked-lm",
+            "causal-lm",
+            "sequence-classification",
+            "multiple-choice",
+            "token-classification",
+            "question-answering",
+            onnx_config_cls="models.bert.BertOnnxConfig",
+        ),
+        "big-bird": supported_features_mapping(
+            "default",
+            "masked-lm",
+            "causal-lm",
+            "sequence-classification",
+            "multiple-choice",
+            "token-classification",
+            "question-answering",
+            onnx_config_cls="models.big_bird.BigBirdOnnxConfig",
+        ),
+        "bigbird-pegasus": supported_features_mapping(
+            "default",
+            "default-with-past",
+            "causal-lm",
+            "causal-lm-with-past",
+            "seq2seq-lm",
+            "seq2seq-lm-with-past",
+            "sequence-classification",
+            "question-answering",
+            onnx_config_cls="models.bigbird_pegasus.BigBirdPegasusOnnxConfig",
+        ),
+        "blenderbot": supported_features_mapping(
+            "default",
+            "default-with-past",
+            "causal-lm",
+            "causal-lm-with-past",
+            "seq2seq-lm",
+            "seq2seq-lm-with-past",
+            onnx_config_cls="models.blenderbot.BlenderbotOnnxConfig",
+        ),
+        "blenderbot-small": supported_features_mapping(
+            "default",
+            "default-with-past",
+            "causal-lm",
+            "causal-lm-with-past",
+            "seq2seq-lm",
+            "seq2seq-lm-with-past",
+            onnx_config_cls="models.blenderbot_small.BlenderbotSmallOnnxConfig",
+        ),
+        "bloom": supported_features_mapping(
+            "default",
+            "default-with-past",
+            "causal-lm",
+            "causal-lm-with-past",
+            "sequence-classification",
+            "token-classification",
+            onnx_config_cls="models.bloom.BloomOnnxConfig",
+        ),
+        "camembert": supported_features_mapping(
+            "default",
+            "masked-lm",
+            "causal-lm",
+            "sequence-classification",
+            "multiple-choice",
+            "token-classification",
+            "question-answering",
+            onnx_config_cls="models.camembert.CamembertOnnxConfig",
+        ),
+        "clip": supported_features_mapping(
+            "default",
+            onnx_config_cls="models.clip.CLIPOnnxConfig",
+        ),
+        "codegen": supported_features_mapping(
+            "default",
+            "causal-lm",
+            onnx_config_cls="models.codegen.CodeGenOnnxConfig",
+        ),
+        "convbert": supported_features_mapping(
+            "default",
+            "masked-lm",
+            "sequence-classification",
+            "multiple-choice",
+            "token-classification",
+            "question-answering",
+            onnx_config_cls="models.convbert.ConvBertOnnxConfig",
+        ),
+        "convnext": supported_features_mapping(
+            "default",
+            "image-classification",
+            onnx_config_cls="models.convnext.ConvNextOnnxConfig",
+        ),
+        "data2vec-text": supported_features_mapping(
+            "default",
+            "masked-lm",
+            "sequence-classification",
+            "multiple-choice",
+            "token-classification",
+            "question-answering",
+            onnx_config_cls="models.data2vec.Data2VecTextOnnxConfig",
+        ),
+        "data2vec-vision": supported_features_mapping(
+            "default",
+            "image-classification",
+            # ONNX doesn't support `adaptive_avg_pool2d` yet
+            # "semantic-segmentation",
+            onnx_config_cls="models.data2vec.Data2VecVisionOnnxConfig",
+        ),
+        "deberta": supported_features_mapping(
+            "default",
+            "masked-lm",
+            "sequence-classification",
+            "token-classification",
+            "question-answering",
+            onnx_config_cls="models.deberta.DebertaOnnxConfig",
+        ),
+        "deberta-v2": supported_features_mapping(
+            "default",
+            "masked-lm",
+            "sequence-classification",
+            "multiple-choice",
+            "token-classification",
+            "question-answering",
+            onnx_config_cls="models.deberta_v2.DebertaV2OnnxConfig",
+        ),
+        "deit": supported_features_mapping(
+            "default", "image-classification", onnx_config_cls="models.deit.DeiTOnnxConfig"
+        ),
+        "detr": supported_features_mapping(
+            "default",
+            "object-detection",
+            "image-segmentation",
+            onnx_config_cls="models.detr.DetrOnnxConfig",
+        ),
+        "distilbert": supported_features_mapping(
+            "default",
+            "masked-lm",
+            "sequence-classification",
+            "multiple-choice",
+            "token-classification",
+            "question-answering",
+            onnx_config_cls="models.distilbert.DistilBertOnnxConfig",
+        ),
+        "electra": supported_features_mapping(
+            "default",
+            "masked-lm",
+            "causal-lm",
+            "sequence-classification",
+            "multiple-choice",
+            "token-classification",
+            "question-answering",
+            onnx_config_cls="models.electra.ElectraOnnxConfig",
+        ),
+        "flaubert": supported_features_mapping(
+            "default",
+            "masked-lm",
+            "causal-lm",
+            "sequence-classification",
+            "multiple-choice",
+            "token-classification",
+            "question-answering",
+            onnx_config_cls="models.flaubert.FlaubertOnnxConfig",
+        ),
+        "gpt2": supported_features_mapping(
+            "default",
+            "default-with-past",
+            "causal-lm",
+            "causal-lm-with-past",
+            "sequence-classification",
+            "token-classification",
+            onnx_config_cls="models.gpt2.GPT2OnnxConfig",
+        ),
+        "gptj": supported_features_mapping(
+            "default",
+            "default-with-past",
+            "causal-lm",
+            "causal-lm-with-past",
+            "question-answering",
+            "sequence-classification",
+            onnx_config_cls="models.gptj.GPTJOnnxConfig",
+        ),
+        "gpt-neo": supported_features_mapping(
+            "default",
+            "default-with-past",
+            "causal-lm",
+            "causal-lm-with-past",
+            "sequence-classification",
+            onnx_config_cls="models.gpt_neo.GPTNeoOnnxConfig",
+        ),
+        "groupvit": supported_features_mapping(
+            "default",
+            onnx_config_cls="models.groupvit.GroupViTOnnxConfig",
+        ),
+        "ibert": supported_features_mapping(
+            "default",
+            "masked-lm",
+            "sequence-classification",
+            "multiple-choice",
+            "token-classification",
+            "question-answering",
+            onnx_config_cls="models.ibert.IBertOnnxConfig",
+        ),
+        "imagegpt": supported_features_mapping(
+            "default", "image-classification", onnx_config_cls="models.imagegpt.ImageGPTOnnxConfig"
+        ),
+        "layoutlm": supported_features_mapping(
+            "default",
+            "masked-lm",
+            "sequence-classification",
+            "token-classification",
+            onnx_config_cls="models.layoutlm.LayoutLMOnnxConfig",
+        ),
+        "layoutlmv3": supported_features_mapping(
+            "default",
+            "question-answering",
+            "sequence-classification",
+            "token-classification",
+            onnx_config_cls="models.layoutlmv3.LayoutLMv3OnnxConfig",
+        ),
+        "levit": supported_features_mapping(
+            "default", "image-classification", onnx_config_cls="models.levit.LevitOnnxConfig"
+        ),
+        "longt5": supported_features_mapping(
+            "default",
+            "default-with-past",
+            "seq2seq-lm",
+            "seq2seq-lm-with-past",
+            onnx_config_cls="models.longt5.LongT5OnnxConfig",
+        ),
+        "longformer": supported_features_mapping(
+            "default",
+            "masked-lm",
+            "multiple-choice",
+            "question-answering",
+            "sequence-classification",
+            "token-classification",
+            onnx_config_cls="models.longformer.LongformerOnnxConfig",
+        ),
+        "marian": supported_features_mapping(
+            "default",
+            "default-with-past",
+            "seq2seq-lm",
+            "seq2seq-lm-with-past",
+            "causal-lm",
+            "causal-lm-with-past",
+            onnx_config_cls="models.marian.MarianOnnxConfig",
+        ),
+        "mbart": supported_features_mapping(
+            "default",
+            "default-with-past",
+            "causal-lm",
+            "causal-lm-with-past",
+            "seq2seq-lm",
+            "seq2seq-lm-with-past",
+            "sequence-classification",
+            "question-answering",
+            onnx_config_cls="models.mbart.MBartOnnxConfig",
+        ),
+        "mobilebert": supported_features_mapping(
+            "default",
+            "masked-lm",
+            "sequence-classification",
+            "multiple-choice",
+            "token-classification",
+            "question-answering",
+            onnx_config_cls="models.mobilebert.MobileBertOnnxConfig",
+        ),
+        "mobilenet-v1": supported_features_mapping(
+            "default",
+            "image-classification",
+            onnx_config_cls="models.mobilenet_v1.MobileNetV1OnnxConfig",
+        ),
+        "mobilenet-v2": supported_features_mapping(
+            "default",
+            "image-classification",
+            onnx_config_cls="models.mobilenet_v2.MobileNetV2OnnxConfig",
+        ),
+        "mobilevit": supported_features_mapping(
+            "default",
+            "image-classification",
+            onnx_config_cls="models.mobilevit.MobileViTOnnxConfig",
+        ),
+        "mt5": supported_features_mapping(
+            "default",
+            "default-with-past",
+            "seq2seq-lm",
+            "seq2seq-lm-with-past",
+            onnx_config_cls="models.mt5.MT5OnnxConfig",
+        ),
+        "m2m-100": supported_features_mapping(
+            "default",
+            "default-with-past",
+            "seq2seq-lm",
+            "seq2seq-lm-with-past",
+            onnx_config_cls="models.m2m_100.M2M100OnnxConfig",
+        ),
+        "owlvit": supported_features_mapping(
+            "default",
+            onnx_config_cls="models.owlvit.OwlViTOnnxConfig",
+        ),
+        "perceiver": supported_features_mapping(
+            "image-classification",
+            "masked-lm",
+            "sequence-classification",
+            onnx_config_cls="models.perceiver.PerceiverOnnxConfig",
+        ),
+        "poolformer": supported_features_mapping(
+            "default", "image-classification", onnx_config_cls="models.poolformer.PoolFormerOnnxConfig"
+        ),
+        "rembert": supported_features_mapping(
+            "default",
+            "masked-lm",
+            "causal-lm",
+            "sequence-classification",
+            "multiple-choice",
+            "token-classification",
+            "question-answering",
+            onnx_config_cls="models.rembert.RemBertOnnxConfig",
+        ),
+        "resnet": supported_features_mapping(
+            "default",
+            "image-classification",
+            onnx_config_cls="models.resnet.ResNetOnnxConfig",
+        ),
+        "roberta": supported_features_mapping(
+            "default",
+            "masked-lm",
+            "causal-lm",
+            "sequence-classification",
+            "multiple-choice",
+            "token-classification",
+            "question-answering",
+            onnx_config_cls="models.roberta.RobertaOnnxConfig",
+        ),
+        "roformer": supported_features_mapping(
+            "default",
+            "masked-lm",
+            "causal-lm",
+            "sequence-classification",
+            "token-classification",
+            "multiple-choice",
+            "question-answering",
+            "token-classification",
+            onnx_config_cls="models.roformer.RoFormerOnnxConfig",
+        ),
+        "segformer": supported_features_mapping(
+            "default",
+            "image-classification",
+            "semantic-segmentation",
+            onnx_config_cls="models.segformer.SegformerOnnxConfig",
+        ),
+        "squeezebert": supported_features_mapping(
+            "default",
+            "masked-lm",
+            "sequence-classification",
+            "multiple-choice",
+            "token-classification",
+            "question-answering",
+            onnx_config_cls="models.squeezebert.SqueezeBertOnnxConfig",
+        ),
+        "swin": supported_features_mapping(
+            "default", "image-classification", onnx_config_cls="models.swin.SwinOnnxConfig"
+        ),
+        "t5": supported_features_mapping(
+            "default",
+            "default-with-past",
+            "seq2seq-lm",
+            "seq2seq-lm-with-past",
+            onnx_config_cls="models.t5.T5OnnxConfig",
+        ),
+        "vision-encoder-decoder": supported_features_mapping(
+            "vision2seq-lm", onnx_config_cls="models.vision_encoder_decoder.VisionEncoderDecoderOnnxConfig"
+        ),
+        "vit": supported_features_mapping(
+            "default", "image-classification", onnx_config_cls="models.vit.ViTOnnxConfig"
+        ),
+        "whisper": supported_features_mapping(
+            "default",
+            "default-with-past",
+            "speech2seq-lm",
+            "speech2seq-lm-with-past",
+            onnx_config_cls="models.whisper.WhisperOnnxConfig",
+        ),
+        "xlm": supported_features_mapping(
+            "default",
+            "masked-lm",
+            "causal-lm",
+            "sequence-classification",
+            "multiple-choice",
+            "token-classification",
+            "question-answering",
+            onnx_config_cls="models.xlm.XLMOnnxConfig",
+        ),
+        "xlm-roberta": supported_features_mapping(
+            "default",
+            "masked-lm",
+            "causal-lm",
+            "sequence-classification",
+            "multiple-choice",
+            "token-classification",
+            "question-answering",
+            onnx_config_cls="models.xlm_roberta.XLMRobertaOnnxConfig",
+        ),
+        "yolos": supported_features_mapping(
+            "default",
+            "object-detection",
+            onnx_config_cls="models.yolos.YolosOnnxConfig",
+        ),
+    }
+
+    AVAILABLE_FEATURES = sorted(reduce(lambda s1, s2: s1 | s2, (v.keys() for v in _SUPPORTED_MODEL_TYPE.values())))
+
+    @staticmethod
+    def get_supported_features_for_model_type(
+        model_type: str, model_name: Optional[str] = None
+    ) -> Dict[str, Callable[[PretrainedConfig], OnnxConfig]]:
+        """
+        Tries to retrieve the feature -> OnnxConfig constructor map from the model type.
+
+        Args:
+            model_type (`str`):
+                The model type to retrieve the supported features for.
+            model_name (`str`, *optional*):
+                The name attribute of the model object, only used for the exception message.
+
+        Returns:
+            The dictionary mapping each feature to a corresponding OnnxConfig constructor.
+        """
+        model_type = model_type.lower()
+        if model_type not in FeaturesManager._SUPPORTED_MODEL_TYPE:
+            model_type_and_model_name = f"{model_type} ({model_name})" if model_name else model_type
+            raise KeyError(
+                f"{model_type_and_model_name} is not supported yet. "
+                f"Only {list(FeaturesManager._SUPPORTED_MODEL_TYPE.keys())} are supported. "
+                f"If you want to support {model_type} please propose a PR or open up an issue."
+            )
+        return FeaturesManager._SUPPORTED_MODEL_TYPE[model_type]
+
+    @staticmethod
+    def feature_to_task(feature: str) -> str:
+        return feature.replace("-with-past", "")
+
+    @staticmethod
+    def _validate_framework_choice(framework: str):
+        """
+        Validates if the framework requested for the export is both correct and available, otherwise throws an
+        exception.
+        """
+        if framework not in ["pt", "tf"]:
+            raise ValueError(
+                f"Only two frameworks are supported for ONNX export: pt or tf, but {framework} was provided."
+            )
+        elif framework == "pt" and not is_torch_available():
+            raise RuntimeError("Cannot export model to ONNX using PyTorch because no PyTorch package was found.")
+        elif framework == "tf" and not is_tf_available():
+            raise RuntimeError("Cannot export model to ONNX using TensorFlow because no TensorFlow package was found.")
+
+    @staticmethod
+    def get_model_class_for_feature(feature: str, framework: str = "pt") -> Type:
+        """
+        Attempts to retrieve an AutoModel class from a feature name.
+
+        Args:
+            feature (`str`):
+                The feature required.
+            framework (`str`, *optional*, defaults to `"pt"`):
+                The framework to use for the export.
+
+        Returns:
+            The AutoModel class corresponding to the feature.
+        """
+        task = FeaturesManager.feature_to_task(feature)
+        FeaturesManager._validate_framework_choice(framework)
+        if framework == "pt":
+            task_to_automodel = FeaturesManager._TASKS_TO_AUTOMODELS
+        else:
+            task_to_automodel = FeaturesManager._TASKS_TO_TF_AUTOMODELS
+        if task not in task_to_automodel:
+            raise KeyError(
+                f"Unknown task: {feature}. Possible values are {list(FeaturesManager._TASKS_TO_AUTOMODELS.values())}"
+            )
+
+        return task_to_automodel[task]
+
+    @staticmethod
+    def determine_framework(model: str, framework: str = None) -> str:
+        """
+        Determines the framework to use for the export.
+
+        The priority is in the following order:
+            1. User input via `framework`.
+            2. If local checkpoint is provided, use the same framework as the checkpoint.
+            3. Available framework in environment, with priority given to PyTorch
+
+        Args:
+            model (`str`):
+                The name of the model to export.
+            framework (`str`, *optional*, defaults to `None`):
+                The framework to use for the export. See above for priority if none provided.
+
+        Returns:
+            The framework to use for the export.
+
+        """
+        if framework is not None:
+            return framework
+
+        framework_map = {"pt": "PyTorch", "tf": "TensorFlow"}
+        exporter_map = {"pt": "torch", "tf": "tf2onnx"}
+
+        if os.path.isdir(model):
+            if os.path.isfile(os.path.join(model, WEIGHTS_NAME)):
+                framework = "pt"
+            elif os.path.isfile(os.path.join(model, TF2_WEIGHTS_NAME)):
+                framework = "tf"
+            else:
+                raise FileNotFoundError(
+                    "Cannot determine framework from given checkpoint location."
+                    f" There should be a {WEIGHTS_NAME} for PyTorch"
+                    f" or {TF2_WEIGHTS_NAME} for TensorFlow."
+                )
+            logger.info(f"Local {framework_map[framework]} model found.")
+        else:
+            if is_torch_available():
+                framework = "pt"
+            elif is_tf_available():
+                framework = "tf"
+            else:
+                raise EnvironmentError("Neither PyTorch nor TensorFlow found in environment. Cannot export to ONNX.")
+
+        logger.info(f"Framework not requested. Using {exporter_map[framework]} to export to ONNX.")
+
+        return framework
+
+    @staticmethod
+    def get_model_from_feature(
+        feature: str, model: str, framework: str = None, cache_dir: str = None
+    ) -> Union["PreTrainedModel", "TFPreTrainedModel"]:
+        """
+        Attempts to retrieve a model from a model's name and the feature to be enabled.
+
+        Args:
+            feature (`str`):
+                The feature required.
+            model (`str`):
+                The name of the model to export.
+            framework (`str`, *optional*, defaults to `None`):
+                The framework to use for the export. See `FeaturesManager.determine_framework` for the priority should
+                none be provided.
+
+        Returns:
+            The instance of the model.
+
+        """
+        framework = FeaturesManager.determine_framework(model, framework)
+        model_class = FeaturesManager.get_model_class_for_feature(feature, framework)
+        try:
+            model = model_class.from_pretrained(model, cache_dir=cache_dir)
+        except OSError:
+            if framework == "pt":
+                logger.info("Loading TensorFlow model in PyTorch before exporting to ONNX.")
+                model = model_class.from_pretrained(model, from_tf=True, cache_dir=cache_dir)
+            else:
+                logger.info("Loading PyTorch model in TensorFlow before exporting to ONNX.")
+                model = model_class.from_pretrained(model, from_pt=True, cache_dir=cache_dir)
+        return model
+
+    @staticmethod
+    def check_supported_model_or_raise(
+        model: Union["PreTrainedModel", "TFPreTrainedModel"], feature: str = "default"
+    ) -> Tuple[str, Callable]:
+        """
+        Check whether or not the model has the requested features.
+
+        Args:
+            model: The model to export.
+            feature: The name of the feature to check if it is available.
+
+        Returns:
+            (str) The type of the model (OnnxConfig) The OnnxConfig instance holding the model export properties.
+
+        """
+        model_type = model.config.model_type.replace("_", "-")
+        model_name = getattr(model, "name", "")
+        model_features = FeaturesManager.get_supported_features_for_model_type(model_type, model_name=model_name)
+        if feature not in model_features:
+            raise ValueError(
+                f"{model.config.model_type} doesn't support feature {feature}. Supported values are: {model_features}"
+            )
+
+        return model.config.model_type, FeaturesManager._SUPPORTED_MODEL_TYPE[model_type][feature]
+
+    def get_config(model_type: str, feature: str) -> OnnxConfig:
+        """
+        Gets the OnnxConfig for a model_type and feature combination.
+
+        Args:
+            model_type (`str`):
+                The model type to retrieve the config for.
+            feature (`str`):
+                The feature to retrieve the config for.
+
+        Returns:
+            `OnnxConfig`: config for the combination
+        """
+        return FeaturesManager._SUPPORTED_MODEL_TYPE[model_type][feature]

env-llmeval/lib/python3.10/site-packages/transformers/onnx/utils.py

@@ -0,0 +1,109 @@
+# Copyright 2021 The HuggingFace Team. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from ctypes import c_float, sizeof
+from enum import Enum
+from typing import TYPE_CHECKING, Optional, Union
+
+
+if TYPE_CHECKING:
+    from .. import AutoFeatureExtractor, AutoProcessor, AutoTokenizer  # tests_ignore
+
+
+class ParameterFormat(Enum):
+    Float = c_float
+
+    @property
+    def size(self) -> int:
+        """
+        Number of byte required for this data type
+
+        Returns:
+            Integer > 0
+        """
+        return sizeof(self.value)
+
+
+def compute_effective_axis_dimension(dimension: int, fixed_dimension: int, num_token_to_add: int = 0) -> int:
+    """
+
+    Args:
+        dimension:
+        fixed_dimension:
+        num_token_to_add:
+
+    Returns:
+
+    """
+    # < 0 is possible if using a dynamic axis
+    if dimension <= 0:
+        dimension = fixed_dimension
+
+    dimension -= num_token_to_add
+    return dimension
+
+
+def compute_serialized_parameters_size(num_parameters: int, dtype: ParameterFormat) -> int:
+    """
+    Compute the size taken by all the parameters in the given the storage format when serializing the model
+
+    Args:
+        num_parameters: Number of parameters to be saved
+        dtype: The data format each parameter will be saved
+
+    Returns:
+        Size (in byte) taken to save all the parameters
+    """
+    return num_parameters * dtype.size
+
+
+def get_preprocessor(model_name: str) -> Optional[Union["AutoTokenizer", "AutoFeatureExtractor", "AutoProcessor"]]:
+    """
+    Gets a preprocessor (tokenizer, feature extractor or processor) that is available for `model_name`.
+
+    Args:
+        model_name (`str`): Name of the model for which a preprocessor are loaded.
+
+    Returns:
+        `Optional[Union[AutoTokenizer, AutoFeatureExtractor, AutoProcessor]]`:
+            If a processor is found, it is returned. Otherwise, if a tokenizer or a feature extractor exists, it is
+            returned. If both a tokenizer and a feature extractor exist, an error is raised. The function returns
+            `None` if no preprocessor is found.
+    """
+    # Avoid circular imports by only importing this here.
+    from .. import AutoFeatureExtractor, AutoProcessor, AutoTokenizer  # tests_ignore
+
+    try:
+        return AutoProcessor.from_pretrained(model_name)
+    except (ValueError, OSError, KeyError):
+        tokenizer, feature_extractor = None, None
+        try:
+            tokenizer = AutoTokenizer.from_pretrained(model_name)
+        except (OSError, KeyError):
+            pass
+        try:
+            feature_extractor = AutoFeatureExtractor.from_pretrained(model_name)
+        except (OSError, KeyError):
+            pass
+
+        if tokenizer is not None and feature_extractor is not None:
+            raise ValueError(
+                f"Couldn't auto-detect preprocessor for {model_name}. Found both a tokenizer and a feature extractor."
+            )
+        elif tokenizer is None and feature_extractor is None:
+            return None
+        elif tokenizer is not None:
+            return tokenizer
+        else:
+            return feature_extractor