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ckpts/universal/global_step20/zero/10.attention.dense.weight/exp_avg.pt

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ckpts/universal/global_step20/zero/18.mlp.dense_4h_to_h.weight/fp32.pt

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ckpts/universal/global_step20/zero/26.mlp.dense_h_to_4h.weight/exp_avg_sq.pt

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ckpts/universal/global_step20/zero/26.mlp.dense_h_to_4h.weight/fp32.pt

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venv/lib/python3.10/site-packages/torch/include/torch/csrc/api/include/torch/data/dataloader.h

@@ -0,0 +1,57 @@
+#pragma once
+
+#include <torch/data/dataloader/stateful.h>
+#include <torch/data/dataloader/stateless.h>
+
+#include <torch/csrc/utils/variadic.h>
+
+#include <c10/util/Exception.h>
+
+#include <cstddef>
+#include <memory>
+#include <type_traits>
+#include <utility>
+
+namespace torch {
+namespace data {
+
+/// Creates a `DataLoader` instance for a stateless `dataset`, a `sampler` and
+/// some `options`.
+template <typename Dataset, typename Sampler>
+torch::disable_if_t<
+    Dataset::is_stateful,
+    std::unique_ptr<StatelessDataLoader<Dataset, Sampler>>>
+make_data_loader(Dataset dataset, Sampler sampler, DataLoaderOptions options) {
+  return std::make_unique<StatelessDataLoader<Dataset, Sampler>>(
+      std::move(dataset), std::move(sampler), std::move(options));
+}
+
+/// Creates a `DataLoader` instance for a stateless `dataset` and some
+/// `options`. A sampler (by default a `RandomSampler`) will be constructed from
+/// the size of the dataset.
+template <typename Sampler = samplers::RandomSampler, typename Dataset>
+torch::disable_if_t<
+    Dataset::is_stateful || !std::is_constructible<Sampler, size_t>::value,
+    std::unique_ptr<StatelessDataLoader<Dataset, Sampler>>>
+make_data_loader(
+    Dataset dataset,
+    DataLoaderOptions options = DataLoaderOptions()) {
+  const optional<size_t> size = dataset.size();
+  TORCH_CHECK(
+      size.has_value(),
+      "Expected the dataset to be sized in "
+      "order to construct the Sampler");
+  return make_data_loader(
+      std::move(dataset), Sampler(*size), std::move(options));
+}
+
+/// Creates a `DataLoader` for a stateful `dataset` and some `options`.
+template <typename Dataset, typename = torch::enable_if_t<Dataset::is_stateful>>
+std::unique_ptr<StatefulDataLoader<Dataset>> make_data_loader(
+    Dataset dataset,
+    DataLoaderOptions options = DataLoaderOptions()) {
+  return std::make_unique<StatefulDataLoader<Dataset>>(
+      std::move(dataset), std::move(options));
+}
+} // namespace data
+} // namespace torch

venv/lib/python3.10/site-packages/torch/include/torch/csrc/api/include/torch/data/dataloader/base.h

@@ -0,0 +1,255 @@
+#pragma once
+
+#include <torch/data/dataloader_options.h>
+#include <torch/data/detail/data_shuttle.h>
+#include <torch/data/detail/sequencers.h>
+#include <torch/data/iterator.h>
+#include <torch/data/samplers/random.h>
+#include <torch/data/worker_exception.h>
+#include <torch/types.h>
+
+#include <torch/csrc/utils/variadic.h>
+
+#include <c10/util/Exception.h>
+#include <c10/util/irange.h>
+
+#include <cstddef>
+#include <exception>
+#include <memory>
+#include <thread>
+#include <type_traits>
+#include <utility>
+#include <vector>
+
+namespace torch {
+namespace data {
+template <typename Dataset, typename Batch, typename BatchRequest>
+class DataLoaderBase {
+ public:
+  using BatchType = Batch;
+  using BatchRequestType = BatchRequest;
+
+  /// Constructs a new DataLoader from a `dataset` to sample from, `options`
+  /// to configure the DataLoader with, and a `sampler` that specifies the
+  /// sampling strategy.
+  DataLoaderBase(
+      DataLoaderOptions options,
+      std::unique_ptr<Dataset> main_thread_dataset = nullptr)
+      : options_(std::move(options)),
+        main_thread_dataset_(std::move(main_thread_dataset)),
+        sequencer_(new_sequencer()) {}
+
+  // NOLINTNEXTLINE(bugprone-exception-escape)
+  virtual ~DataLoaderBase() {
+    join();
+  }
+
+  /// Returns an iterator into the DataLoader. The lifetime of the iterator is
+  /// bound to the DataLoader. In C++ standards language, the category of the
+  /// iterator is `OutputIterator`. See
+  /// https://en.cppreference.com/w/cpp/named_req/OutputIterator for what this
+  /// means. In short: you may increment the iterator and dereference it, but
+  /// cannot go back, or step forward more than one position at a time. When the
+  /// DataLoader is exhausted, it will compare equal with the special
+  /// "sentinel" iterator returned by `DataLoader::end()`. Most of the time, you
+  /// should only use range-for loops to loop over the DataLoader, but
+  /// standard algorithms like `std::copy(dataloader.begin(), dataloader.end(),
+  /// output_iterator)`  are supported too.
+  Iterator<Batch> begin() {
+    TORCH_CHECK(
+        shuttle_.in_flight_jobs() == 0,
+        "Attempted to get a new DataLoader iterator "
+        "while another iterator is not yet exhausted");
+    reset();
+    return Iterator<Batch>(std::make_unique<detail::ValidIterator<Batch>>(
+        [this] { return this->next(); }));
+  }
+
+  /// Returns a special "sentinel" iterator that compares equal with a
+  /// non-sentinel iterator once the DataLoader is exhausted.
+  Iterator<Batch> end() {
+    return Iterator<Batch>(std::make_unique<detail::SentinelIterator<Batch>>());
+  }
+
+  /// Joins the DataLoader's worker threads and drains internal queues.
+  /// This function may only be invoked from the main thread (in which the
+  /// DataLoader lives).
+  void join() {
+    if (joined_) {
+      return;
+    }
+    shuttle_.drain();
+    // Send one 'quit' message per worker. Since a worker dies (exits its
+    // thread) after receiving this message, each `QuitWorker()` message will be
+    // read by exactly one worker.
+    for (const auto w : c10::irange(options_.workers)) {
+      (void)w; // Suppress unused variable warning
+      push_job(QuitWorker());
+    }
+    for (auto& worker : workers_) {
+      worker.join();
+    }
+    joined_ = true;
+  }
+
+  /// Returns the options with which the DataLoader was configured.
+  const FullDataLoaderOptions& options() const noexcept {
+    return options_;
+  }
+
+ protected:
+  /// Simple mix-in to give something a sequence number.
+  struct Sequenced {
+    Sequenced() = default;
+    Sequenced(size_t sqn) : sequence_number(sqn) {}
+    size_t sequence_number;
+  };
+
+  struct QuitWorker {};
+
+  /// A `Job` is either a `BatchRequest` (new indices to fetch data at) or a
+  /// `QuitWorker` object, to indicate the worker should shut down.
+  struct Job : Sequenced {
+    Job() = default;
+    Job(QuitWorker q, size_t sqn) : Sequenced(sqn), quit(q) {}
+    Job(BatchRequest&& i, size_t sqn)
+        : Sequenced(sqn), batch_request(std::move(i)) {}
+    optional<QuitWorker> quit;
+    optional<BatchRequest> batch_request;
+  };
+
+  /// The finished result of a job.
+  struct Result : Sequenced {
+    Result() = default;
+    Result(optional<Batch>&& b, size_t sqn)
+        : Sequenced(sqn), batch(std::move(b)) {}
+    Result(std::exception_ptr exception, size_t sqn)
+        : Sequenced(sqn), exception(std::move(exception)) {}
+    optional<Batch> batch;
+    std::exception_ptr exception;
+  };
+
+  /// Subclass hook for getting the next batch request. The stateless case will
+  /// ask the sampler for a new batch request (e.g. a vector of indices), while
+  /// the stateful one will simply return the batch size.
+  virtual optional<BatchRequestType> get_batch_request() = 0;
+
+  /// Resets the internal state of the DataLoader, optionally pre-fetching
+  /// new jobs.
+  virtual void reset() {
+    shuttle_.drain();
+    sequence_number_ = 0;
+    sequencer_ = new_sequencer();
+    prefetch();
+  }
+
+  /// Schedules `requested_jobs` many new batches to be fetched. The actual
+  /// number of jobs scheduled may be less if the DataLoader exhausts.
+  void prefetch(size_t requested_jobs) {
+    for (const auto r : c10::irange(requested_jobs)) {
+      (void)r; // Suppress unused variable
+      if (auto batch_request = get_batch_request()) {
+        this->push_job(std::move(*batch_request));
+      } else {
+        break;
+      }
+    }
+  }
+
+  /// Schedules the maximum number of jobs (based on the `max_jobs` option).
+  void prefetch() {
+    prefetch(options_.max_jobs);
+  }
+
+  /// Returns the next batch of data, or an empty `optional` if the DataLoader
+  /// is exhausted. This operation will block until a batch is available if one
+  /// is still expected.
+  optional<BatchType> next() {
+    if (options_.workers > 0) {
+      while (optional<Result> result = this->pop_result()) {
+        if (result->exception) {
+          throw WorkerException(result->exception);
+        } else if (result->batch) {
+          prefetch(1);
+          return std::move(result->batch);
+        }
+      }
+    } else if (auto batch_request = get_batch_request()) {
+      return this->main_thread_dataset_->get_batch(std::move(*batch_request));
+    }
+    return nullopt;
+  }
+
+  /// The function that worker threads run.
+  void worker_thread(Dataset& dataset) {
+    while (true) {
+      auto job = shuttle_.pop_job();
+      if (job.quit) {
+        break;
+      }
+      try {
+        auto batch = dataset.get_batch(std::move(*job.batch_request));
+        shuttle_.push_result({std::move(batch), job.sequence_number});
+      } catch (...) {
+        shuttle_.push_result({std::current_exception(), job.sequence_number});
+      }
+    }
+  }
+
+  /// Convenience method that calls `shuttle_.push_job()` with the next sequence
+  /// number.
+  template <typename T>
+  void push_job(T value) {
+    shuttle_.push_job({std::move(value), sequence_number_++});
+  }
+
+  /// Convenience method that gets the next result from the sequencer.
+  optional<Result> pop_result() {
+    return sequencer_->next(
+        [this] { return this->shuttle_.pop_result(this->options_.timeout); });
+  }
+
+  /// Convenience method that creates a new sequencer based on the
+  /// `enforce_ordering` option.
+  std::unique_ptr<detail::sequencers::Sequencer<Result>> new_sequencer() {
+    if (options_.enforce_ordering) {
+      return std::make_unique<detail::sequencers::OrderedSequencer<Result>>(
+          options_.max_jobs);
+    }
+    return std::make_unique<detail::sequencers::NoSequencer<Result>>();
+  }
+
+  /// The options the DataLoader was configured with.
+  // NOLINTNEXTLINE(cppcoreguidelines-non-private-member-variables-in-classes)
+  const FullDataLoaderOptions options_;
+
+  /// The dataset for the main thread, only has a value if the number of
+  /// worker threads was configured as zero, meaning the main thread has to do
+  /// all the work (synchronously). NOTE: Really want this to be on the heap
+  /// when empty, therefore `unique_ptr` and not `optional`.
+  // NOLINTNEXTLINE(cppcoreguidelines-non-private-member-variables-in-classes)
+  std::unique_ptr<Dataset> main_thread_dataset_;
+
+  /// The sequence number for the *next* batch to be retrieved from the
+  /// dataset.
+  // NOLINTNEXTLINE(cppcoreguidelines-non-private-member-variables-in-classes)
+  size_t sequence_number_ = 0;
+
+  /// The worker threads, running the `worker_thread()` method.
+  // NOLINTNEXTLINE(cppcoreguidelines-non-private-member-variables-in-classes)
+  std::vector<std::thread> workers_;
+
+  /// The `DataShuttle` which takes care of the life cycle of a job.
+  // NOLINTNEXTLINE(cppcoreguidelines-non-private-member-variables-in-classes)
+  detail::DataShuttle<Job, Result> shuttle_;
+
+  /// The `Sequencer`, which handles optional ordering of batches.
+  // NOLINTNEXTLINE(cppcoreguidelines-non-private-member-variables-in-classes)
+  std::unique_ptr<detail::sequencers::Sequencer<Result>> sequencer_;
+
+  /// True if the DataLoader has joined its worker threads.
+  // NOLINTNEXTLINE(cppcoreguidelines-non-private-member-variables-in-classes)
+  bool joined_ = false;
+};
+} // namespace data
+} // namespace torch

venv/lib/python3.10/site-packages/torch/include/torch/csrc/api/include/torch/data/dataloader/stateful.h

@@ -0,0 +1,65 @@
+#pragma once
+
+#include <c10/util/irange.h>
+#include <torch/data/dataloader/base.h>
+
+#include <cstddef>
+#include <thread>
+#include <utility>
+
+namespace torch {
+namespace data {
+
+/// A dataloader for stateful datasets.
+///
+/// A dataloader for stateful datatasets differs from one for stateless
+/// datasets one in that the dataset is shared among worker threads, and that
+/// this dataset is itself responsible for producing batches rather than
+/// depending on a sampler. The statefulness here actually refers to the
+/// dataset. The StatefulDataLoader simply alters the data loading algorithm to
+/// accommodate the stateful, shared nature of the dataset. Note that the
+/// dataset must be thread safe if more than one worker thread is used.
+///
+/// A stateful dataloader is created by calling `make_data_loader` with a
+/// stateful dataset.
+template <typename Dataset>
+class StatefulDataLoader : public DataLoaderBase<
+                               Dataset,
+                               typename Dataset::BatchType::value_type,
+                               typename Dataset::BatchRequestType> {
+ public:
+  using super = DataLoaderBase<
+      Dataset,
+      typename Dataset::BatchType::value_type,
+      typename Dataset::BatchRequestType>;
+  using typename super::BatchRequestType;
+
+  /// Constructs the `StatefulDataLoader` from a `dataset` and some `options`.
+  StatefulDataLoader(Dataset dataset, DataLoaderOptions options)
+      : super(
+            std::move(options),
+            std::make_unique<Dataset>(std::move(dataset))) {
+    for (const auto w : c10::irange(this->options_.workers)) {
+      // As opposed to the stateless case, here all worker threads access the
+      // same underlying dataset.
+      this->workers_.emplace_back(
+          [this] { this->worker_thread(*this->main_thread_dataset_); });
+    }
+  }
+
+ private:
+  /// Resets the internal state of the dataloader and the dataset.
+  void reset() override {
+    this->main_thread_dataset_->reset();
+    // Call the base class method last because it calls `prefetch()`
+    super::reset();
+  }
+
+  /// For stateful datasets, the batch request is always the batch size. The
+  /// dataset is responsible for determining what goes into the batch next.
+  optional<BatchRequestType> get_batch_request() override {
+    return this->options_.batch_size;
+  }
+};
+} // namespace data
+} // namespace torch

venv/lib/python3.10/site-packages/torch/include/torch/csrc/api/include/torch/data/dataloader/stateless.h

@@ -0,0 +1,82 @@
+#pragma once
+
+#include <torch/data/dataloader/base.h>
+#include <torch/data/worker_exception.h>
+
+#include <c10/util/Exception.h>
+#include <c10/util/irange.h>
+
+#include <cstddef>
+#include <thread>
+#include <utility>
+
+namespace torch {
+namespace data {
+
+/// A dataloader for stateless datasets.
+///
+/// This dataloader follows the traditional PyTorch dataloader design, whereby a
+/// (posssibly) stateful sampler produces *batch requests* for a stateless
+/// dataset, which acts as a simple batch request to batch mapping. The batch
+/// request will often be an array of indices, and if the dataset is a simple
+/// image dataset, the dataset would produce the images at those indices.
+template <typename Dataset, typename Sampler>
+class StatelessDataLoader : public DataLoaderBase<
+                                Dataset,
+                                typename Dataset::BatchType,
+                                typename Sampler::BatchRequestType> {
+ public:
+  using super = DataLoaderBase<
+      Dataset,
+      typename Dataset::BatchType,
+      typename Sampler::BatchRequestType>;
+  using typename super::BatchRequestType;
+
+  /// Constructs the `StatelessDataLoader` from a `dataset`, a `sampler` and
+  /// some `options`.
+  StatelessDataLoader(
+      Dataset dataset,
+      Sampler sampler,
+      DataLoaderOptions options)
+      : super(std::move(options)), sampler_(std::move(sampler)) {
+    for (const auto w : c10::irange(this->options_.workers)) {
+      // Here we copy the dataset into the worker thread closure. Each worker
+      // has its own copy of the dataset. This means the dataset must be
+      // trivially copiable, or else we don't expect more than one worker to
+      // be in use.
+      (void)w; // Suppress unused variable warning
+      this->workers_.emplace_back(
+          [this, dataset]() mutable { this->worker_thread(dataset); });
+    }
+    if (this->options_.workers == 0) {
+      this->main_thread_dataset_ =
+          std::make_unique<Dataset>(std::move(dataset));
+    }
+  }
+
+ private:
+  /// Resets the internal state of the dataloader and the sampler.
+  void reset() override {
+    sampler_.reset();
+    // Call the base class method last because it calls `prefetch()`
+    super::reset();
+  }
+
+  /// Queries the sampler for the next batch request (possibly progressing its
+  /// internal state).
+  optional<BatchRequestType> get_batch_request() override {
+    auto indices = sampler_.next(this->options_.batch_size);
+    if (!indices ||
+        (indices->size() < this->options_.batch_size &&
+         this->options_.drop_last)) {
+      return nullopt;
+    }
+    AT_ASSERT(indices->size() > 0);
+    return indices;
+  }
+
+  /// The `Sampler` used to produce batch requests.
+  Sampler sampler_;
+};
+} // namespace data
+} // namespace torch

venv/lib/python3.10/site-packages/torch/include/torch/csrc/api/include/torch/data/datasets.h

@@ -0,0 +1,9 @@
+#pragma once
+
+#include <torch/data/datasets/base.h>
+#include <torch/data/datasets/chunk.h>
+#include <torch/data/datasets/map.h>
+#include <torch/data/datasets/mnist.h>
+#include <torch/data/datasets/shared.h>
+#include <torch/data/datasets/stateful.h>
+#include <torch/data/datasets/tensor.h>

venv/lib/python3.10/site-packages/torch/include/torch/csrc/api/include/torch/data/datasets/map.h

@@ -0,0 +1,118 @@
+#pragma once
+
+#include <torch/data/datasets/base.h>
+#include <torch/types.h>
+
+#include <c10/util/ArrayRef.h>
+
+#include <cstddef>
+#include <type_traits>
+#include <utility>
+
+namespace torch {
+namespace data {
+namespace datasets {
+namespace detail {
+template <bool C, typename T>
+using optional_if_t = typename std::conditional<C, torch::optional<T>, T>::type;
+} // namespace detail
+
+/// A `MapDataset` is a dataset that applies a transform to a source dataset.
+template <typename SourceDataset, typename AppliedTransform>
+class MapDataset : public BatchDataset<
+                       MapDataset<SourceDataset, AppliedTransform>,
+                       detail::optional_if_t<
+                           SourceDataset::is_stateful,
+                           typename AppliedTransform::OutputBatchType>,
+                       typename SourceDataset::BatchRequestType> {
+ public:
+  using DatasetType = SourceDataset;
+  using TransformType = AppliedTransform;
+  using BatchRequestType = typename SourceDataset::BatchRequestType;
+  using OutputBatchType = detail::optional_if_t<
+      SourceDataset::is_stateful,
+      typename AppliedTransform::OutputBatchType>;
+
+  MapDataset(DatasetType dataset, TransformType transform)
+      : dataset_(std::move(dataset)), transform_(std::move(transform)) {}
+
+  /// Gets a batch from the source dataset and applies the transform to it,
+  /// returning the result.
+  OutputBatchType get_batch(BatchRequestType indices) override {
+    return get_batch_impl(std::move(indices));
+  }
+
+  /// Returns the size of the source dataset.
+  // NOLINTNEXTLINE(bugprone-exception-escape)
+  optional<size_t> size() const noexcept override {
+    return dataset_.size();
+  }
+
+  /// Calls `reset()` on the underlying dataset.
+  /// NOTE: Stateless datasets do not have a reset() method, so a call to this
+  /// method will only compile for stateful datasets (which have a reset()
+  /// method).
+  void reset() {
+    dataset_.reset();
+  }
+
+  /// Returns the underlying dataset.
+  const SourceDataset& dataset() noexcept {
+    return dataset_;
+  }
+
+  /// Returns the transform being applied.
+  const AppliedTransform& transform() noexcept {
+    return transform_;
+  }
+
+ private:
+  /// The implementation of `get_batch()` for the stateless case, which simply
+  /// applies the transform to the output of `get_batch()` from the dataset.
+  template <
+      typename D = SourceDataset,
+      typename = torch::disable_if_t<D::is_stateful>>
+  OutputBatchType get_batch_impl(BatchRequestType indices) {
+    return transform_.apply_batch(dataset_.get_batch(std::move(indices)));
+  }
+
+  /// The implementation of `get_batch()` for the stateful case. Here, we follow
+  /// the semantics of `Optional.map()` in many functional languages, which
+  /// applies a transformation to the optional's content when the optional
+  /// contains a value, and returns a new optional (of a different type)  if the
+  /// original optional returned by `get_batch()` was empty.
+  template <typename D = SourceDataset>
+  torch::enable_if_t<D::is_stateful, OutputBatchType> get_batch_impl(
+      BatchRequestType indices) {
+    if (auto batch = dataset_.get_batch(std::move(indices))) {
+      return transform_.apply_batch(std::move(*batch));
+    }
+    return nullopt;
+  }
+
+  /// The underlying dataset being transformed.
+  SourceDataset dataset_;
+
+  // The transformation that is applied to batches received from the dataset.
+  AppliedTransform transform_;
+};
+
+/// Creates a `MapDataset` with the given dataset and transform.
+template <typename DatasetType, typename TransformType>
+MapDataset<DatasetType, TransformType> map(
+    DatasetType dataset,
+    TransformType transform) {
+  static_assert(
+      std::is_same<
+          typename std::conditional<
+              DatasetType::is_stateful,
+              typename DatasetType::BatchType::value_type,
+              typename DatasetType::BatchType>::type,
+          typename TransformType::InputBatchType>::value,
+      "BatchType type of dataset does not match input type of transform");
+  return {std::move(dataset), std::move(transform)};
+}
+
+} // namespace datasets
+} // namespace data
+} // namespace torch

venv/lib/python3.10/site-packages/torch/include/torch/csrc/api/include/torch/data/datasets/mnist.h

@@ -0,0 +1,48 @@
+#pragma once
+
+#include <torch/data/datasets/base.h>
+#include <torch/data/example.h>
+#include <torch/types.h>
+
+#include <torch/csrc/Export.h>
+
+#include <cstddef>
+#include <string>
+
+namespace torch {
+namespace data {
+namespace datasets {
+/// The MNIST dataset.
+class TORCH_API MNIST : public Dataset<MNIST> {
+ public:
+  /// The mode in which the dataset is loaded.
+  enum class Mode { kTrain, kTest };
+
+  /// Loads the MNIST dataset from the `root` path.
+  ///
+  /// The supplied `root` path should contain the *content* of the unzipped
+  /// MNIST dataset, available from http://yann.lecun.com/exdb/mnist.
+  explicit MNIST(const std::string& root, Mode mode = Mode::kTrain);
+
+  /// Returns the `Example` at the given `index`.
+  Example<> get(size_t index) override;
+
+  /// Returns the size of the dataset.
+  optional<size_t> size() const override;
+
+  /// Returns true if this is the training subset of MNIST.
+  // NOLINTNEXTLINE(bugprone-exception-escape)
+  bool is_train() const noexcept;
+
+  /// Returns all images stacked into a single tensor.
+  const Tensor& images() const;
+
+  /// Returns all targets stacked into a single tensor.
+  const Tensor& targets() const;
+
+ private:
+  Tensor images_, targets_;
+};
+} // namespace datasets
+} // namespace data
+} // namespace torch

venv/lib/python3.10/site-packages/torch/include/torch/csrc/api/include/torch/data/datasets/shared.h

@@ -0,0 +1,83 @@
+#pragma once
+
+#include <torch/data/datasets/base.h>
+
+#include <memory>
+#include <utility>
+
+namespace torch {
+namespace data {
+namespace datasets {
+
+/// A dataset that wraps another dataset in a shared pointer and implements the
+/// `BatchDataset` API, delegating all calls to the shared instance. This is
+/// useful when you want all worker threads in the dataloader to access the same
+/// dataset instance. The dataset must take care of synchronization and
+/// thread-safe access itself.
+///
+/// Use `torch::data::datasets::make_shared_dataset()` to create a new
+/// `SharedBatchDataset` like you would a `std::shared_ptr`.
+template <typename UnderlyingDataset>
+class SharedBatchDataset : public BatchDataset<
+                               SharedBatchDataset<UnderlyingDataset>,
+                               typename UnderlyingDataset::BatchType,
+                               typename UnderlyingDataset::BatchRequestType> {
+ public:
+  using BatchType = typename UnderlyingDataset::BatchType;
+  using BatchRequestType = typename UnderlyingDataset::BatchRequestType;
+
+  /// Constructs a new `SharedBatchDataset` from a `shared_ptr` to the
+  /// `UnderlyingDataset`.
+  /* implicit */ SharedBatchDataset(
+      std::shared_ptr<UnderlyingDataset> shared_dataset)
+      : dataset_(std::move(shared_dataset)) {}
+
+  /// Calls `get_batch` on the underlying dataset.
+  BatchType get_batch(BatchRequestType request) override {
+    return dataset_->get_batch(std::move(request));
+  }
+
+  /// Returns the `size` from the underlying dataset.
+  optional<size_t> size() const override {
+    return dataset_->size();
+  }
+
+  /// Accesses the underlying dataset.
+  UnderlyingDataset& operator*() {
+    return *dataset_;
+  }
+
+  /// Accesses the underlying dataset.
+  const UnderlyingDataset& operator*() const {
+    return *dataset_;
+  }
+
+  /// Accesses the underlying dataset.
+  UnderlyingDataset* operator->() {
+    return dataset_.get();
+  }
+
+  /// Accesses the underlying dataset.
+  const UnderlyingDataset* operator->() const {
+    return dataset_.get();
+  }
+
+  /// Calls `reset()` on the underlying dataset.
+  void reset() {
+    dataset_->reset();
+  }
+
+ private:
+  std::shared_ptr<UnderlyingDataset> dataset_;
+};
+
+/// Constructs a new `SharedBatchDataset` by creating a
+/// `shared_ptr<UnderlyingDatase>`. All arguments are forwarded to
+/// `make_shared<UnderlyingDataset>`.
+template <typename UnderlyingDataset, typename... Args>
+SharedBatchDataset<UnderlyingDataset> make_shared_dataset(Args&&... args) {
+  return std::make_shared<UnderlyingDataset>(std::forward<Args>(args)...);
+}
+} // namespace datasets
+} // namespace data
+} // namespace torch

venv/lib/python3.10/site-packages/torch/include/torch/csrc/api/include/torch/data/datasets/stateful.h

@@ -0,0 +1,70 @@
+#pragma once
+
+#include <torch/data/datasets/base.h>
+#include <torch/data/example.h>
+
+#include <cstddef>
+#include <vector>
+
+namespace torch {
+namespace serialize {
+class OutputArchive;
+class InputArchive;
+} // namespace serialize
+} // namespace torch
+
+namespace torch {
+namespace data {
+namespace datasets {
+
+/// A stateful dataset is a dataset that maintains some internal state, which
+/// will be `reset()` at the beginning of each epoch. Subclasses can override
+/// the `reset()` method to configure this behavior. Further, the return type of
+/// a stateful dataset's `get_batch()` method is always an `optional`. When the
+/// stateful dataset wants to indicate to the dataloader that its epoch has
+/// ended, it should return an empty optional. The dataloader knows to modify
+/// its implementation based on whether the dataset is stateless or stateful.
+///
+/// Note that when subclassing a from `StatefulDataset<Self, T>`, the return
+/// type of `get_batch()`, which the subclass must override, will be
+/// `optional<T>` (i.e. the type specified in the `StatefulDataset`
+/// specialization is automatically boxed into an `optional` for the dataset's
+/// `BatchType`).
+template <
+    typename Self,
+    typename Batch = std::vector<Example<>>,
+    typename BatchRequest = size_t>
+class StatefulDataset
+    : public BatchDataset<Self, optional<Batch>, BatchRequest> {
+ public:
+  /// Resets internal state of the dataset.
+  virtual void reset() = 0;
+
+  /// Saves the statefulDataset's state to OutputArchive.
+  virtual void save(serialize::OutputArchive& archive) const = 0;
+
+  /// Deserializes the statefulDataset's state from the `archive`.
+  virtual void load(serialize::InputArchive& archive) = 0;
+};
+
+/// Serializes a statefulDataset to `OutputArchive`.
+template <typename... Args>
+serialize::OutputArchive& operator<<(
+    serialize::OutputArchive& archive,
+    const StatefulDataset<Args...>& statefulDataset) {
+  statefulDataset.save(archive);
+  return archive;
+}
+
+/// Deserializes a statefulDataset from an `InputArchive`.
+template <typename... Args>
+serialize::InputArchive& operator>>(
+    serialize::InputArchive& archive,
+    StatefulDataset<Args...>& statefulDataset) {
+  statefulDataset.load(archive);
+  return archive;
+}
+
+} // namespace datasets
+} // namespace data
+} // namespace torch

venv/lib/python3.10/site-packages/torch/include/torch/csrc/api/include/torch/data/samplers/base.h

@@ -0,0 +1,47 @@
+#pragma once
+
+#include <torch/csrc/Export.h>
+#include <torch/types.h>
+
+#include <cstddef>
+#include <mutex>
+#include <vector>
+
+namespace torch {
+namespace serialize {
+class OutputArchive;
+class InputArchive;
+} // namespace serialize
+} // namespace torch
+
+namespace torch {
+namespace data {
+namespace samplers {
+/// A `Sampler` is an object that yields an index with which to access a
+/// dataset.
+template <typename BatchRequest = std::vector<size_t>>
+class Sampler {
+ public:
+  using BatchRequestType = BatchRequest;
+
+  virtual ~Sampler() = default;
+
+  /// Resets the `Sampler`'s internal state.
+  /// Typically called before a new epoch.
+  /// Optionally, accepts a new size when reseting the sampler.
+  virtual void reset(optional<size_t> new_size) = 0;
+
+  /// Returns the next index if possible, or an empty optional if the
+  /// sampler is exhausted for this epoch.
+  virtual optional<BatchRequest> next(size_t batch_size) = 0;
+
+  /// Serializes the `Sampler` to the `archive`.
+  virtual void save(serialize::OutputArchive& archive) const = 0;
+
+  /// Deserializes the `Sampler` from the `archive`.
+  virtual void load(serialize::InputArchive& archive) = 0;
+};
+
+} // namespace samplers
+} // namespace data
+} // namespace torch

venv/lib/python3.10/site-packages/torch/include/torch/csrc/api/include/torch/data/samplers/custom_batch_request.h

@@ -0,0 +1,21 @@
+#pragma once
+
+#include <torch/csrc/Export.h>
+#include <cstddef>
+
+namespace torch {
+namespace data {
+namespace samplers {
+/// A base class for custom index types.
+struct TORCH_API CustomBatchRequest {
+  CustomBatchRequest() = default;
+  CustomBatchRequest(const CustomBatchRequest&) = default;
+  CustomBatchRequest(CustomBatchRequest&&) noexcept = default;
+  virtual ~CustomBatchRequest() = default;
+
+  /// The number of elements accessed by this index.
+  virtual size_t size() const = 0;
+};
+} // namespace samplers
+} // namespace data
+} // namespace torch

venv/lib/python3.10/site-packages/torch/include/torch/csrc/api/include/torch/data/samplers/distributed.h

@@ -0,0 +1,139 @@
+#pragma once
+
+#include <torch/csrc/Export.h>
+#include <torch/data/samplers/base.h>
+
+#include <cstddef>
+#include <vector>
+
+namespace torch {
+namespace serialize {
+class OutputArchive;
+class InputArchive;
+} // namespace serialize
+} // namespace torch
+
+namespace torch {
+namespace data {
+namespace samplers {
+
+/// A `Sampler` that selects a subset of indices to sample from and defines a
+/// sampling behavior. In a distributed setting, this selects a subset of the
+/// indices depending on the provided num_replicas and rank parameters. The
+/// `Sampler` performs a rounding operation based on the `allow_duplicates`
+/// parameter to decide the local sample count.
+template <typename BatchRequest = std::vector<size_t>>
+class DistributedSampler : public Sampler<BatchRequest> {
+ public:
+  DistributedSampler(
+      size_t size,
+      size_t num_replicas = 1,
+      size_t rank = 0,
+      bool allow_duplicates = true)
+      : size_(size),
+        num_replicas_(num_replicas),
+        rank_(rank),
+        epoch_(0),
+        allow_duplicates_(allow_duplicates) {}
+
+  /// Set the epoch for the current enumeration. This can be used to alter the
+  /// sample selection and shuffling behavior.
+  void set_epoch(size_t epoch) {
+    epoch_ = epoch;
+  }
+
+  size_t epoch() const {
+    return epoch_;
+  }
+
+ protected:
+  size_t local_sample_count() {
+    if (allow_duplicates_) {
+      return (size_ + num_replicas_ - 1) / num_replicas_;
+    } else {
+      return size_ / num_replicas_;
+    }
+  }
+
+  // NOLINTNEXTLINE(cppcoreguidelines-non-private-member-variables-in-classes)
+  size_t size_;
+  // NOLINTNEXTLINE(cppcoreguidelines-non-private-member-variables-in-classes)
+  size_t num_replicas_;
+  // NOLINTNEXTLINE(cppcoreguidelines-non-private-member-variables-in-classes)
+  size_t rank_;
+  // NOLINTNEXTLINE(cppcoreguidelines-non-private-member-variables-in-classes)
+  size_t epoch_;
+  // NOLINTNEXTLINE(cppcoreguidelines-non-private-member-variables-in-classes)
+  bool allow_duplicates_;
+};
+
+/// Select samples randomly. The sampling order is shuffled at each `reset()`
+/// call.
+class TORCH_API DistributedRandomSampler : public DistributedSampler<> {
+ public:
+  DistributedRandomSampler(
+      size_t size,
+      size_t num_replicas = 1,
+      size_t rank = 0,
+      bool allow_duplicates = true);
+
+  /// Resets the `DistributedRandomSampler` to a new set of indices.
+  void reset(optional<size_t> new_size = nullopt) override;
+
+  /// Returns the next batch of indices.
+  optional<std::vector<size_t>> next(size_t batch_size) override;
+
+  /// Serializes the `DistributedRandomSampler` to the `archive`.
+  void save(serialize::OutputArchive& archive) const override;
+
+  /// Deserializes the `DistributedRandomSampler` from the `archive`.
+  void load(serialize::InputArchive& archive) override;
+
+  /// Returns the current index of the `DistributedRandomSampler`.
+  size_t index() const noexcept;
+
+ private:
+  void populate_indices();
+
+  size_t begin_index_;
+  size_t end_index_;
+  size_t sample_index_;
+  std::vector<size_t> all_indices_;
+};
+
+/// Select samples sequentially.
+class TORCH_API DistributedSequentialSampler : public DistributedSampler<> {
+ public:
+  DistributedSequentialSampler(
+      size_t size,
+      size_t num_replicas = 1,
+      size_t rank = 0,
+      bool allow_duplicates = true);
+
+  /// Resets the `DistributedSequentialSampler` to a new set of indices.
+  void reset(optional<size_t> new_size = nullopt) override;
+
+  /// Returns the next batch of indices.
+  optional<std::vector<size_t>> next(size_t batch_size) override;
+
+  /// Serializes the `DistributedSequentialSampler` to the `archive`.
+  void save(serialize::OutputArchive& archive) const override;
+
+  /// Deserializes the `DistributedSequentialSampler` from the `archive`.
+  void load(serialize::InputArchive& archive) override;
+
+  /// Returns the current index of the `DistributedSequentialSampler`.
+  size_t index() const noexcept;
+
+ private:
+  void populate_indices();
+
+  size_t begin_index_;
+  size_t end_index_;
+  size_t sample_index_;
+  std::vector<size_t> all_indices_;
+};
+
+} // namespace samplers
+} // namespace data
+} // namespace torch

venv/lib/python3.10/site-packages/torch/include/torch/csrc/api/include/torch/data/samplers/random.h

@@ -0,0 +1,54 @@
+#pragma once
+
+#include <torch/csrc/Export.h>
+#include <torch/data/samplers/base.h>
+#include <torch/types.h>
+
+#include <cstddef>
+#include <vector>
+
+namespace torch {
+namespace serialize {
+class OutputArchive;
+class InputArchive;
+} // namespace serialize
+} // namespace torch
+
+namespace torch {
+namespace data {
+namespace samplers {
+
+/// A `Sampler` that returns random indices.
+class TORCH_API RandomSampler : public Sampler<> {
+ public:
+  /// Constructs a `RandomSampler` with a size and dtype for the stored indices.
+  ///
+  /// The constructor will eagerly allocate all required indices, which is the
+  /// sequence `0 ... size - 1`. `index_dtype` is the data type of the stored
+  /// indices. You can change it to influence memory usage.
+  explicit RandomSampler(int64_t size, Dtype index_dtype = torch::kInt64);
+
+  ~RandomSampler() override;
+
+  /// Resets the `RandomSampler` to a new set of indices.
+  void reset(optional<size_t> new_size = nullopt) override;
+
+  /// Returns the next batch of indices.
+  optional<std::vector<size_t>> next(size_t batch_size) override;
+
+  /// Serializes the `RandomSampler` to the `archive`.
+  void save(serialize::OutputArchive& archive) const override;
+
+  /// Deserializes the `RandomSampler` from the `archive`.
+  void load(serialize::InputArchive& archive) override;
+
+  /// Returns the current index of the `RandomSampler`.
+  size_t index() const noexcept;
+
+ private:
+  at::Tensor indices_;
+  int64_t index_ = 0;
+};
+} // namespace samplers
+} // namespace data
+} // namespace torch

venv/lib/python3.10/site-packages/torch/include/torch/csrc/api/include/torch/data/samplers/sequential.h

@@ -0,0 +1,50 @@
+#pragma once
+
+#include <torch/csrc/Export.h>
+#include <torch/data/samplers/base.h>
+#include <torch/types.h>
+
+#include <cstddef>
+#include <vector>
+
+namespace torch {
+namespace serialize {
+class OutputArchive;
+class InputArchive;
+} // namespace serialize
+} // namespace torch
+
+namespace torch {
+namespace data {
+namespace samplers {
+
+/// A `Sampler` that returns indices sequentially.
+class TORCH_API SequentialSampler : public Sampler<> {
+ public:
+  /// Creates a `SequentialSampler` that will return indices in the range
+  /// `0...size - 1`.
+  explicit SequentialSampler(size_t size);
+
+  /// Resets the `SequentialSampler` to zero.
+  void reset(optional<size_t> new_size = nullopt) override;
+
+  /// Returns the next batch of indices.
+  optional<std::vector<size_t>> next(size_t batch_size) override;
+
+  /// Serializes the `SequentialSampler` to the `archive`.
+  void save(serialize::OutputArchive& archive) const override;
+
+  /// Deserializes the `SequentialSampler` from the `archive`.
+  void load(serialize::InputArchive& archive) override;
+
+  /// Returns the current index of the `SequentialSampler`.
+  size_t index() const noexcept;
+
+ private:
+  size_t size_;
+  size_t index_{0};
+};
+
+} // namespace samplers
+} // namespace data
+} // namespace torch

venv/lib/python3.10/site-packages/torch/include/torch/csrc/api/include/torch/data/samplers/serialize.h

@@ -0,0 +1,28 @@
+#pragma once
+
+#include <torch/data/samplers/base.h>
+#include <torch/serialize/archive.h>
+
+namespace torch {
+namespace data {
+namespace samplers {
+/// Serializes a `Sampler` into an `OutputArchive`.
+template <typename BatchRequest>
+serialize::OutputArchive& operator<<(
+    serialize::OutputArchive& archive,
+    const Sampler<BatchRequest>& sampler) {
+  sampler.save(archive);
+  return archive;
+}
+
+/// Deserializes a `Sampler` from an `InputArchive`.
+template <typename BatchRequest>
+serialize::InputArchive& operator>>(
+    serialize::InputArchive& archive,
+    Sampler<BatchRequest>& sampler) {
+  sampler.load(archive);
+  return archive;
+}
+} // namespace samplers
+} // namespace data
+} // namespace torch

venv/lib/python3.10/site-packages/torch/include/torch/csrc/api/include/torch/data/samplers/stream.h

@@ -0,0 +1,63 @@
+#pragma once
+
+#include <torch/csrc/Export.h>
+#include <torch/data/samplers/base.h>
+#include <torch/data/samplers/custom_batch_request.h>
+#include <torch/types.h>
+
+#include <cstddef>
+
+namespace torch {
+namespace serialize {
+class InputArchive;
+class OutputArchive;
+} // namespace serialize
+} // namespace torch
+
+namespace torch {
+namespace data {
+namespace samplers {
+
+/// A wrapper around a batch size value, which implements the
+/// `CustomBatchRequest` interface.
+struct TORCH_API BatchSize : public CustomBatchRequest {
+  explicit BatchSize(size_t size);
+  size_t size() const noexcept override;
+  operator size_t() const noexcept;
+  size_t size_;
+};
+
+/// A sampler for (potentially infinite) streams of data.
+///
+/// The major feature of the `StreamSampler` is that it does not return
+/// particular indices, but instead only the number of elements to fetch from
+/// the dataset. The dataset has to decide how to produce those elements.
+class TORCH_API StreamSampler : public Sampler<BatchSize> {
+ public:
+  /// Constructs the `StreamSampler` with the number of individual examples that
+  /// should be fetched until the sampler is exhausted.
+  explicit StreamSampler(size_t epoch_size);
+
+  /// Resets the internal state of the sampler.
+  void reset(optional<size_t> new_size = nullopt) override;
+
+  /// Returns a `BatchSize` object with the number of elements to fetch in the
+  /// next batch. This number is the minimum of the supplied `batch_size` and
+  /// the difference between the `epoch_size` and the current index. If the
+  /// `epoch_size` has been reached, returns an empty optional.
+  optional<BatchSize> next(size_t batch_size) override;
+
+  /// Serializes the `StreamSampler` to the `archive`.
+  void save(serialize::OutputArchive& archive) const override;
+
+  /// Deserializes the `StreamSampler` from the `archive`.
+  void load(serialize::InputArchive& archive) override;
+
+ private:
+  size_t examples_retrieved_so_far_ = 0;
+  size_t epoch_size_;
+};
+
+} // namespace samplers
+} // namespace data
+} // namespace torch

venv/lib/python3.10/site-packages/torch/include/torch/csrc/api/include/torch/data/transforms/stack.h

@@ -0,0 +1,49 @@
+#pragma once
+
+#include <torch/data/example.h>
+#include <torch/data/transforms/collate.h>
+#include <torch/types.h>
+
+#include <utility>
+#include <vector>
+
+namespace torch {
+namespace data {
+namespace transforms {
+
+template <typename T = Example<>>
+struct Stack;
+
+/// A `Collation` for `Example<Tensor, Tensor>` types that stacks all data
+/// tensors into one tensor, and all target (label) tensors into one tensor.
+template <>
+struct Stack<Example<>> : public Collation<Example<>> {
+  Example<> apply_batch(std::vector<Example<>> examples) override {
+    std::vector<torch::Tensor> data, targets;
+    data.reserve(examples.size());
+    targets.reserve(examples.size());
+    for (auto& example : examples) {
+      data.push_back(std::move(example.data));
+      targets.push_back(std::move(example.target));
+    }
+    return {torch::stack(data), torch::stack(targets)};
+  }
+};
+
+/// A `Collation` for `Example<Tensor, NoTarget>` types that stacks all data
+/// tensors into one tensor.
+template <>
+struct Stack<TensorExample>
+    : public Collation<Example<Tensor, example::NoTarget>> {
+  TensorExample apply_batch(std::vector<TensorExample> examples) override {
+    std::vector<torch::Tensor> data;
+    data.reserve(examples.size());
+    for (auto& example : examples) {
+      data.push_back(std::move(example.data));
+    }
+    return torch::stack(data);
+  }
+};
+} // namespace transforms
+} // namespace data
+} // namespace torch

venv/lib/python3.10/site-packages/torch/include/torch/csrc/api/include/torch/nn/cloneable.h

@@ -0,0 +1,98 @@
+#pragma once
+
+#include <torch/nn/module.h>
+#include <torch/types.h>
+#include <torch/utils.h>
+
+#include <c10/core/TensorOptions.h>
+#include <c10/util/Exception.h>
+
+#include <memory>
+#include <utility>
+
+namespace torch {
+namespace nn {
+/// The `clone()` method in the base `Module` class does not have knowledge of
+/// the concrete runtime type of its subclasses. Therefore, `clone()` must
+/// either be called from within the subclass, or from a base class that has
+/// knowledge of the concrete type. `Cloneable` uses the CRTP to gain
+/// knowledge of the subclass' static type and provide an implementation of the
+/// `clone()` method. We do not want to use this pattern in the base class,
+/// because then storing a module would always require templatizing it.
+template <typename Derived>
+// NOLINTNEXTLINE(bugprone-exception-escape)
+class Cloneable : public Module {
+ public:
+  using Module::Module;
+
+  /// `reset()` must perform initialization of all members with reference
+  /// semantics, most importantly parameters, buffers and submodules.
+  virtual void reset() = 0;
+
+  /// Performs a recursive "deep copy" of the `Module`, such that all parameters
+  /// and submodules in the cloned module are different from those in the
+  /// original module.
+  std::shared_ptr<Module> clone(
+      const optional<Device>& device = nullopt) const override {
+    NoGradGuard no_grad;
+
+    const auto& self = static_cast<const Derived&>(*this);
+    auto copy = std::make_shared<Derived>(self);
+    copy->parameters_.clear();
+    copy->buffers_.clear();
+    copy->children_.clear();
+    copy->reset();
+    TORCH_CHECK(
+        copy->parameters_.size() == parameters_.size(),
+        "The cloned module does not have the same number of "
+        "parameters as the original module after calling reset(). "
+        "Are you sure you called register_parameter() inside reset() "
+        "and not the constructor?");
+    for (const auto& parameter : named_parameters(/*recurse=*/false)) {
+      auto& tensor = *parameter;
+      auto data = device && tensor.device() != *device
+          ? tensor.to(*device)
+          : autograd::Variable(tensor).clone();
+      copy->parameters_[parameter.key()].set_data(data);
+    }
+    TORCH_CHECK(
+        copy->buffers_.size() == buffers_.size(),
+        "The cloned module does not have the same number of "
+        "buffers as the original module after calling reset(). "
+        "Are you sure you called register_buffer() inside reset() "
+        "and not the constructor?");
+    for (const auto& buffer : named_buffers(/*recurse=*/false)) {
+      auto& tensor = *buffer;
+      auto data = device && tensor.device() != *device
+          ? tensor.to(*device)
+          : autograd::Variable(tensor).clone();
+      copy->buffers_[buffer.key()].set_data(data);
+    }
+    TORCH_CHECK(
+        copy->children_.size() == children_.size(),
+        "The cloned module does not have the same number of "
+        "child modules as the original module after calling reset(). "
+        "Are you sure you called register_module() inside reset() "
+        "and not the constructor?");
+    for (const auto& child : children_) {
+      copy->children_[child.key()]->clone_(*child.value(), device);
+    }
+    return copy;
+  }
+
+ private:
+  void clone_(Module& other, const optional<Device>& device) final {
+    // Here we are *pretty* certain that `other's` type is `Derived` (because it
+    // was registered under the same name as `this`), but you never know what
+    // crazy things `reset()` does, so `dynamic_cast` just to be safe.
+    auto clone = std::dynamic_pointer_cast<Derived>(other.clone(device));
+    TORCH_CHECK(
+        clone != nullptr,
+        "Attempted to clone submodule, but it is of a "
+        "different type than the submodule it was to be cloned into");
+    static_cast<Derived&>(*this) = *clone;
+  }
+};
+
+} // namespace nn
+} // namespace torch

venv/lib/python3.10/site-packages/torch/include/torch/csrc/api/include/torch/nn/functional.h

@@ -0,0 +1,17 @@
+#pragma once
+
+#include <torch/nn/functional/batchnorm.h>
+#include <torch/nn/functional/conv.h>
+#include <torch/nn/functional/distance.h>
+#include <torch/nn/functional/dropout.h>
+#include <torch/nn/functional/embedding.h>
+#include <torch/nn/functional/fold.h>
+#include <torch/nn/functional/instancenorm.h>
+#include <torch/nn/functional/linear.h>
+#include <torch/nn/functional/loss.h>
+#include <torch/nn/functional/normalization.h>
+#include <torch/nn/functional/padding.h>
+#include <torch/nn/functional/pixelshuffle.h>
+#include <torch/nn/functional/pooling.h>
+#include <torch/nn/functional/upsampling.h>
+#include <torch/nn/functional/vision.h>

venv/lib/python3.10/site-packages/torch/include/torch/csrc/api/include/torch/nn/functional/activation.h

@@ -0,0 +1,966 @@
+#pragma once
+
+#include <ATen/Dispatch.h>
+#include <torch/nn/functional/dropout.h>
+#include <torch/nn/functional/linear.h>
+#include <torch/nn/options/activation.h>
+#include <torch/nn/options/dropout.h>
+#include <torch/nn/options/linear.h>
+#include <torch/types.h>
+#include <limits>
+#include <utility>
+
+namespace torch {
+namespace nn {
+namespace functional {
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor elu(Tensor input, double alpha, bool inplace) {
+  if (inplace) {
+    return torch::elu_(input, alpha);
+  } else {
+    return torch::elu(input, alpha);
+  }
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.elu
+/// about the exact behavior of this functional.
+///
+/// See the documentation for `torch::nn::functional::ELUFuncOptions` class to
+/// learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::elu(x, F::ELUFuncOptions().alpha(0.42).inplace(true));
+/// ```
+inline Tensor elu(Tensor input, const ELUFuncOptions& options = {}) {
+  return detail::elu(std::move(input), options.alpha(), options.inplace());
+}
+
+// ============================================================================
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor selu(Tensor input, bool inplace) {
+  if (inplace) {
+    return torch::selu_(input);
+  } else {
+    return torch::selu(input);
+  }
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.selu
+/// about the exact behavior of this functional.
+///
+/// See the documentation for `torch::nn::functional::SELUFuncOptions` class to
+/// learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::selu(input, F::SELUFuncOptions(false));
+/// ```
+inline Tensor selu(Tensor input, const SELUFuncOptions& options = {}) {
+  return detail::selu(std::move(input), options.inplace());
+}
+
+// ============================================================================
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor hardshrink(const Tensor& input, double lambda) {
+  return torch::hardshrink(input, lambda);
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.hardshrink
+/// about the exact behavior of this functional.
+///
+/// See the documentation for `torch::nn::functional::HardshrinkFuncOptions`
+/// class to learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::hardshrink(x, F::HardshrinkFuncOptions().lambda(0.42));
+/// ```
+inline Tensor hardshrink(
+    const Tensor& input,
+    const HardshrinkFuncOptions& options = {}) {
+  return detail::hardshrink(input, options.lambda());
+}
+
+// ============================================================================
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor hardtanh(
+    Tensor input,
+    double min_val,
+    double max_val,
+    bool inplace) {
+  if (inplace) {
+    return torch::hardtanh_(input, min_val, max_val);
+  } else {
+    return torch::hardtanh(input, min_val, max_val);
+  }
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.hardtanh
+/// about the exact behavior of this functional.
+///
+/// See the documentation for `torch::nn::functional::HardtanhFuncOptions` class
+/// to learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::hardtanh(x,
+/// F::HardtanhFuncOptions().min_val(-1.0).max_val(1.0).inplace(true));
+/// ```
+inline Tensor hardtanh(Tensor input, const HardtanhFuncOptions& options = {}) {
+  return detail::hardtanh(
+      std::move(input),
+      options.min_val(),
+      options.max_val(),
+      options.inplace());
+}
+
+// ============================================================================
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor leaky_relu(Tensor input, double negative_slope, bool inplace) {
+  if (inplace) {
+    return torch::leaky_relu_(input, negative_slope);
+  } else {
+    return torch::leaky_relu(input, negative_slope);
+  }
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.leaky_relu
+/// about the exact behavior of this functional.
+///
+/// See the documentation for `torch::nn::functional::LeakyReLUFuncOptions`
+/// class to learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::leaky_relu(x,
+/// F::LeakyReLUFuncOptions().negative_slope(0.42).inplace(true));
+/// ```
+inline Tensor leaky_relu(
+    Tensor input,
+    const LeakyReLUFuncOptions& options = {}) {
+  return detail::leaky_relu(
+      std::move(input), options.negative_slope(), options.inplace());
+}
+
+// ============================================================================
+
+inline Tensor logsigmoid(const Tensor& input) {
+  return torch::log_sigmoid(input);
+}
+
+// ============================================================================
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor gumbel_softmax(
+    const Tensor& logits,
+    double tau,
+    bool hard,
+    int dim) {
+  auto gumbels =
+      -torch::empty_like(logits).exponential_().log(); // ~Gumbel(0,1)
+  gumbels = (logits + gumbels) / tau; // ~Gumbel(logits, tau)
+  auto y_soft = gumbels.softmax(dim);
+
+  torch::Tensor ret;
+  if (hard) {
+    // Straight through.
+    auto index = std::get<1>(y_soft.max(dim, /*keepdim=*/true));
+    auto y_hard = torch::zeros_like(logits).scatter_(dim, index, 1.0);
+    ret = y_hard - y_soft.detach() + y_soft;
+  } else {
+    ret = y_soft;
+  }
+  return ret;
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.gumbel_softmax
+/// about the exact behavior of this functional.
+///
+/// See the documentation for `torch::nn::functional::GumbelSoftmaxFuncOptions`
+/// class to learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::gumbel_softmax(logits, F::GumbelSoftmaxFuncOptions().hard(true).dim(-1));
+/// ```
+inline Tensor gumbel_softmax(
+    const Tensor& logits,
+    const GumbelSoftmaxFuncOptions& options = {}) {
+  return detail::gumbel_softmax(
+      logits, options.tau(), options.hard(), options.dim());
+}
+
+// ============================================================================
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor softmax(
+    const Tensor& input,
+    int64_t dim,
+    c10::optional<torch::Dtype> dtype) {
+  Tensor ret;
+
+  if (dtype == c10::nullopt) {
+    ret = input.softmax(dim);
+  } else {
+    ret = input.softmax(dim, dtype);
+  }
+
+  return ret;
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.softmax
+/// about the exact behavior of this functional.
+///
+/// See the documentation for `torch::nn::functional::SoftmaxFuncOptions` class
+/// to learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::softmax(input, F::SoftmaxFuncOptions(1));
+/// ```
+inline Tensor softmax(const Tensor& input, const SoftmaxFuncOptions& options) {
+  return detail::softmax(input, options.dim(), options.dtype());
+}
+
+// ============================================================================
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor softmin(
+    const Tensor& input,
+    int64_t dim,
+    c10::optional<torch::Dtype> dtype) {
+  Tensor ret;
+
+  if (dtype == c10::nullopt) {
+    ret = (-input).softmax(dim);
+  } else {
+    ret = (-input).softmax(dim, dtype);
+  }
+
+  return ret;
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.softmin
+/// about the exact behavior of this functional.
+///
+/// See the documentation for `torch::nn::functional::SoftminFuncOptions` class
+/// to learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::softmin(input, F::SoftminFuncOptions(1));
+/// ```
+inline Tensor softmin(const Tensor& input, const SoftminFuncOptions& options) {
+  return detail::softmin(input, options.dim(), options.dtype());
+}
+
+// ============================================================================
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor log_softmax(
+    const Tensor& input,
+    int64_t dim,
+    c10::optional<torch::Dtype> dtype) {
+  Tensor ret;
+
+  if (dtype == c10::nullopt) {
+    ret = input.log_softmax(dim);
+  } else {
+    ret = input.log_softmax(dim, dtype);
+  }
+
+  return ret;
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.log_softmax
+/// about the exact behavior of this functional.
+///
+/// See the documentation for `torch::nn::functional::LogSoftmaxFuncOptions`
+/// class to learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::log_softmax(input, LogSoftmaxFuncOptions(1));
+/// ```
+inline Tensor log_softmax(
+    const Tensor& input,
+    const LogSoftmaxFuncOptions& options) {
+  return detail::log_softmax(input, options.dim(), options.dtype());
+}
+
+// ============================================================================
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor glu(const Tensor& input, int64_t dim) {
+  TORCH_CHECK(
+      input.dim() != 0,
+      "glu does not suppport scalars because halving size must be even");
+  return torch::glu(input, dim);
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.glu
+/// about the exact behavior of this functional.
+///
+/// See the documentation for `torch::nn::functional::GLUFuncOptions` class to
+/// learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::glu(input, GLUFuncOptions(1));
+/// ```
+inline Tensor glu(const Tensor& input, const GLUFuncOptions& options = {}) {
+  return detail::glu(input, options.dim());
+}
+
+// ============================================================================
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor gelu(const Tensor& input, string approximate) {
+  return torch::gelu(input, approximate);
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+inline Tensor gelu(const Tensor& input, const GELUFuncOptions& options = {}) {
+  return detail::gelu(input, options.approximate());
+}
+
+// ============================================================================
+
+inline Tensor silu(const Tensor& input) {
+  return torch::silu(input);
+}
+
+// ============================================================================
+
+inline Tensor mish(const Tensor& input) {
+  return torch::mish(input);
+}
+
+// ============================================================================
+
+inline Tensor prelu(const Tensor& input, const Tensor& weight) {
+  return torch::prelu(input, weight);
+}
+
+// ============================================================================
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor relu(Tensor input, bool inplace) {
+  if (inplace) {
+    return torch::relu_(input);
+  } else {
+    return torch::relu(input);
+  }
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.relu
+/// about the exact behavior of this functional.
+///
+/// See the documentation for `torch::nn::functional::ReLUFuncOptions` class to
+/// learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::relu(x, F::ReLUFuncOptions().inplace(true));
+/// ```
+inline Tensor relu(Tensor input, const ReLUFuncOptions& options = {}) {
+  return detail::relu(std::move(input), options.inplace());
+}
+
+// ============================================================================
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor relu6(Tensor input, bool inplace) {
+  if (inplace) {
+    return torch::relu6_(input);
+  } else {
+    return torch::relu6(input);
+  }
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.relu6
+/// about the exact behavior of this functional.
+///
+/// See the documentation for `torch::nn::functional::ReLU6FuncOptions` class to
+/// learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::relu6(x, F::ReLU6FuncOptions().inplace(true));
+/// ```
+inline Tensor relu6(Tensor input, const ReLU6FuncOptions& options = {}) {
+  return detail::relu6(std::move(input), options.inplace());
+}
+
+// ============================================================================
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor rrelu(
+    Tensor input,
+    double lower,
+    double upper,
+    bool training,
+    bool inplace) {
+  if (inplace) {
+    return torch::rrelu_(input, lower, upper, training);
+  } else {
+    return torch::rrelu(input, lower, upper, training);
+  }
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.rrelu
+/// about the exact behavior of this functional.
+///
+/// See the documentation for `torch::nn::functional::RReLUFuncOptions` class to
+/// learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::rrelu(x, F::RReLUFuncOptions().lower(0.1).upper(0.4).inplace(true));
+/// ```
+inline Tensor rrelu(Tensor input, const RReLUFuncOptions& options = {}) {
+  return detail::rrelu(
+      std::move(input),
+      options.lower(),
+      options.upper(),
+      options.training(),
+      options.inplace());
+}
+
+// ============================================================================
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor celu(Tensor input, double alpha, bool inplace) {
+  if (inplace) {
+    return torch::celu_(input, alpha);
+  } else {
+    return torch::celu(input, alpha);
+  }
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.celu
+/// about the exact behavior of this functional.
+///
+/// See the documentation for `torch::nn::functional::CELUFuncOptions` class to
+/// learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::celu(x, F::CELUFuncOptions().alpha(0.42).inplace(true));
+/// ```
+inline Tensor celu(Tensor input, const CELUFuncOptions& options = {}) {
+  return detail::celu(std::move(input), options.alpha(), options.inplace());
+}
+
+// ============================================================================
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor softplus(const Tensor& input, double beta, double threshold) {
+  return torch::softplus(input, beta, threshold);
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.softplus
+/// about the exact behavior of this functional.
+///
+/// See the documentation for `torch::nn::functional::SoftplusFuncOptions` class
+/// to learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::softplus(x, F::SoftplusFuncOptions().beta(0.5).threshold(3.0));
+/// ```
+inline Tensor softplus(
+    const Tensor& input,
+    const SoftplusFuncOptions& options = {}) {
+  return detail::softplus(input, options.beta(), options.threshold());
+}
+
+// ============================================================================
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor softshrink(const Tensor& input, double lambda) {
+  return torch::softshrink(input, lambda);
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.softshrink
+/// about the exact behavior of this functional.
+///
+/// See the documentation for `torch::nn::functional::SoftshrinkFuncOptions`
+/// class to learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::softshrink(x, F::SoftshrinkFuncOptions(0.42));
+/// ```
+inline Tensor softshrink(
+    const Tensor& input,
+    const SoftshrinkFuncOptions& options = {}) {
+  return detail::softshrink(input, options.lambda());
+}
+
+// ============================================================================
+
+inline Tensor softsign(const Tensor& input) {
+  return input / (input.abs() + 1);
+}
+
+// ============================================================================
+
+inline Tensor tanhshrink(const Tensor& input) {
+  return input - input.tanh();
+}
+
+// ============================================================================
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor threshold(
+    Tensor input,
+    double threshold,
+    double value,
+    bool inplace) {
+  if (inplace) {
+    return torch::threshold_(input, threshold, value);
+  } else {
+    return torch::threshold(input, threshold, value);
+  }
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.threshold
+/// about the exact behavior of this functional.
+///
+/// See the documentation for `torch::nn::functional::ThresholdFuncOptions`
+/// class to learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::threshold(x, F::ThresholdFuncOptions(0.5, 0.5).inplace(true));
+/// ```
+inline Tensor threshold(Tensor input, const ThresholdFuncOptions& options) {
+  return detail::threshold(
+      std::move(input),
+      options.threshold(),
+      options.value(),
+      options.inplace());
+}
+
+// ============================================================================
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline std::tuple<Tensor, Tensor> multi_head_attention_forward(
+    const Tensor& query,
+    const Tensor& key,
+    const Tensor& value,
+    int64_t embed_dim_to_check,
+    int64_t num_heads,
+    const Tensor& in_proj_weight,
+    const Tensor& in_proj_bias,
+    const Tensor& bias_k,
+    const Tensor& bias_v,
+    bool add_zero_attn,
+    double dropout_p,
+    const Tensor& out_proj_weight,
+    const Tensor& out_proj_bias,
+    bool training = true,
+    const Tensor& key_padding_mask = {},
+    bool need_weights = true,
+    const Tensor& attn_mask = {},
+    bool use_separate_proj_weight = false,
+    const Tensor& q_proj_weight = {},
+    const Tensor& k_proj_weight = {},
+    const Tensor& v_proj_weight = {},
+    const Tensor& static_k = {},
+    const Tensor& static_v = {},
+    bool average_attn_weights = true) {
+  namespace F = torch::nn::functional;
+
+  const auto query_sizes = query.sizes();
+  const auto& tgt_len = query_sizes[0];
+  const auto& bsz = query_sizes[1];
+  const auto& embed_dim = query_sizes[2];
+  TORCH_INTERNAL_ASSERT(embed_dim == embed_dim_to_check);
+  TORCH_INTERNAL_ASSERT(key.sizes() == value.sizes());
+
+  const auto head_dim = embed_dim / num_heads;
+  TORCH_CHECK(
+      head_dim * num_heads == embed_dim,
+      "embed_dim must be divisible by num_heads");
+  const auto scaling = 1 / std::sqrt(head_dim);
+
+  Tensor q, k, v;
+  if (!use_separate_proj_weight) {
+    if (torch::equal(query, key) && torch::equal(key, value)) {
+      // self-attention
+      const auto chunks =
+          F::linear(query, in_proj_weight, in_proj_bias).chunk(3, /*dim=*/-1);
+      q = chunks[0];
+      k = chunks[1];
+      v = chunks[2];
+    } else if (torch::equal(key, value)) {
+      // encoder-decoder attention
+      // This is inline in_proj function with in_proj_weight and in_proj_bias
+      auto _b = in_proj_bias;
+      auto _start = 0;
+      auto _end = embed_dim;
+      auto _w = in_proj_weight.slice(/*dim=*/0, _start, _end);
+      if (_b.defined()) {
+        _b = _b.slice(/*dim=*/0, _start, _end);
+      }
+      q = F::linear(query, _w, _b);
+
+      if (!key.defined()) {
+        TORCH_INTERNAL_ASSERT(!value.defined());
+        k.reset();
+        v.reset();
+      } else {
+        // This is inline in_proj function with in_proj_weight and in_proj_bias
+        _b = in_proj_bias;
+        _start = embed_dim;
+        _w = in_proj_weight.slice(/*dim=*/0, _start);
+        if (_b.defined()) {
+          _b = _b.slice(/*dim=*/0, _start);
+        }
+        const auto chunks = F::linear(key, _w, _b).chunk(2, /*dim=*/-1);
+        k = chunks[0];
+        v = chunks[1];
+      }
+    } else {
+      // This is inline in_proj function with in_proj_weight and in_proj_bias
+      auto _b = in_proj_bias;
+      auto _start = 0;
+      auto _end = embed_dim;
+      auto _w = in_proj_weight.slice(/*dim=*/0, _start, _end);
+      if (_b.defined()) {
+        _b = _b.slice(/*dim=*/0, _start, _end);
+      }
+      q = F::linear(query, _w, _b);
+
+      // This is inline in_proj function with in_proj_weight and in_proj_bias
+      _b = in_proj_bias;
+      _start = embed_dim;
+      _end = embed_dim * 2;
+      _w = in_proj_weight.slice(/*dim=*/0, _start, _end);
+      if (_b.defined()) {
+        _b = _b.slice(/*dim=*/0, _start, _end);
+      }
+      k = F::linear(key, _w, _b);
+
+      // This is inline in_proj function with in_proj_weight and in_proj_bias
+      _b = in_proj_bias;
+      _start = embed_dim * 2;
+      _w = in_proj_weight.slice(/*dim=*/0, _start);
+      if (_b.defined()) {
+        _b = _b.slice(0, _start);
+      }
+      v = F::linear(value, _w, _b);
+    }
+  } else {
+    const auto& q_proj_weight_non_opt = q_proj_weight;
+    {
+      const auto sizes = q_proj_weight_non_opt.sizes();
+      const auto len1 = sizes[0];
+      const auto len2 = sizes[1];
+      TORCH_CHECK(len1 == embed_dim && len2 == query.size(-1));
+    }
+
+    const auto& k_proj_weight_non_opt = k_proj_weight;
+    {
+      const auto sizes = k_proj_weight_non_opt.sizes();
+      const auto len1 = sizes[0];
+      const auto len2 = sizes[1];
+      TORCH_CHECK(len1 == embed_dim && len2 == key.size(-1));
+    }
+
+    const auto& v_proj_weight_non_opt = v_proj_weight;
+    {
+      const auto sizes = v_proj_weight_non_opt.sizes();
+      const auto len1 = sizes[0];
+      const auto len2 = sizes[1];
+      TORCH_CHECK(len1 == embed_dim && len2 == value.size(-1));
+    }
+
+    if (in_proj_bias.defined()) {
+      q = F::linear(
+          query,
+          q_proj_weight_non_opt,
+          in_proj_bias.slice(/*dim=*/0, 0, embed_dim));
+      k = F::linear(
+          key,
+          k_proj_weight_non_opt,
+          in_proj_bias.slice(/*dim=*/0, embed_dim, (embed_dim * 2)));
+      v = F::linear(
+          value,
+          v_proj_weight_non_opt,
+          in_proj_bias.slice(/*dim=*/0, (embed_dim * 2)));
+    } else {
+      q = F::linear(query, q_proj_weight_non_opt, in_proj_bias);
+      k = F::linear(key, k_proj_weight_non_opt, in_proj_bias);
+      v = F::linear(value, v_proj_weight_non_opt, in_proj_bias);
+    }
+  }
+  q = q * scaling;
+  Tensor attn_mask_ = attn_mask;
+  Tensor key_padding_mask_ = key_padding_mask;
+  if (bias_k.defined() && bias_v.defined()) {
+    if (!static_k.defined() && !static_v.defined()) {
+      k = torch::cat({k, bias_k.repeat({1, bsz, 1})});
+      v = torch::cat({v, bias_v.repeat({1, bsz, 1})});
+      if (attn_mask_.defined()) {
+        attn_mask_ = torch::cat(
+            {attn_mask_,
+             torch::zeros(
+                 {attn_mask_.size(0), 1},
+                 at::TensorOptions(attn_mask_.dtype())
+                     .device(attn_mask_.device()))},
+            /*dim=*/1);
+      }
+      if (key_padding_mask_.defined()) {
+        key_padding_mask_ = torch::cat(
+            {key_padding_mask_,
+             torch::zeros(
+                 {key_padding_mask_.size(0), 1},
+                 at::TensorOptions(key_padding_mask_.dtype())
+                     .device(key_padding_mask_.device()))},
+            /*dim=*/1);
+      }
+    } else {
+      TORCH_CHECK(!static_k.defined(), "bias cannot be added to static key.");
+      TORCH_CHECK(!static_v.defined(), "bias cannot be added to static value.");
+    }
+  } else {
+    TORCH_CHECK(!bias_k.defined());
+    TORCH_CHECK(!bias_v.defined());
+  }
+  q = q.contiguous().view({tgt_len, bsz * num_heads, head_dim}).transpose(0, 1);
+  if (k.defined()) {
+    k = k.contiguous().view({-1, bsz * num_heads, head_dim}).transpose(0, 1);
+  }
+  if (v.defined()) {
+    v = v.contiguous().view({-1, bsz * num_heads, head_dim}).transpose(0, 1);
+  }
+  if (static_k.defined()) {
+    TORCH_CHECK(static_k.size(0) == bsz * num_heads);
+    TORCH_CHECK(static_k.size(2) == head_dim);
+    k = static_k;
+  }
+  if (static_v.defined()) {
+    TORCH_CHECK(static_v.size(0) == bsz * num_heads);
+    TORCH_CHECK(static_v.size(2) == head_dim);
+    v = static_v;
+  }
+  auto src_len = k.size(1);
+  if (key_padding_mask_.defined()) {
+    TORCH_CHECK(key_padding_mask_.size(0) == bsz);
+    TORCH_CHECK(key_padding_mask_.size(1) == src_len);
+  }
+  if (add_zero_attn) {
+    src_len += 1;
+    auto k_sizes = k.sizes().vec();
+    k_sizes[1] = 1;
+    k = torch::cat(
+        {k,
+         torch::zeros(
+             k_sizes, at::TensorOptions(k.dtype()).device(k.device()))},
+        /*dim=*/1);
+    auto v_sizes = v.sizes().vec();
+    v_sizes[1] = 1;
+    v = torch::cat(
+        {v,
+         torch::zeros(
+             v_sizes, at::TensorOptions(v.dtype()).device(v.device()))},
+        /*dim=*/1);
+    if (attn_mask_.defined()) {
+      attn_mask_ = torch::cat(
+          {attn_mask_,
+           torch::zeros(
+               {attn_mask_.size(0), 1},
+               at::TensorOptions(attn_mask_.dtype())
+                   .device(attn_mask_.device()))},
+          /*dim=*/1);
+    }
+    if (key_padding_mask_.defined()) {
+      key_padding_mask_ = torch::cat(
+          {key_padding_mask_,
+           torch::zeros(
+               {key_padding_mask_.size(0), 1},
+               at::TensorOptions(key_padding_mask_.dtype())
+                   .device(key_padding_mask_.device()))},
+          /*dim=*/1);
+    }
+  }
+  auto attn_output_weights = torch::bmm(q, k.transpose(1, 2));
+  TORCH_CHECK(
+      attn_output_weights.sizes() ==
+      IntArrayRef({bsz * num_heads, tgt_len, src_len}));
+  if (attn_mask_.defined()) {
+    attn_mask_ = attn_mask_.unsqueeze(0);
+    attn_output_weights += attn_mask_;
+  }
+  if (key_padding_mask_.defined()) {
+    attn_output_weights =
+        attn_output_weights.view({bsz, num_heads, tgt_len, src_len});
+    attn_output_weights = AT_DISPATCH_FLOATING_TYPES(
+        attn_output_weights.scalar_type(),
+        "attn_output_weights.masked_fill",
+        [&]() {
+          return attn_output_weights.masked_fill(
+              key_padding_mask_.unsqueeze(1).unsqueeze(2),
+              -std::numeric_limits<scalar_t>::infinity());
+        });
+    attn_output_weights =
+        attn_output_weights.view({bsz * num_heads, tgt_len, src_len});
+  }
+  // NOLINTNEXTLINE(bugprone-argument-comment)
+  attn_output_weights = F::softmax(attn_output_weights, /*dim=*/-1);
+  attn_output_weights = F::dropout(
+      attn_output_weights,
+      F::DropoutFuncOptions().p(dropout_p).training(training));
+  auto attn_output = torch::bmm(attn_output_weights, v);
+  TORCH_CHECK(
+      attn_output.sizes() == IntArrayRef({bsz * num_heads, tgt_len, head_dim}));
+  attn_output =
+      attn_output.transpose(0, 1).contiguous().view({tgt_len, bsz, embed_dim});
+  attn_output = F::linear(attn_output, out_proj_weight, out_proj_bias);
+  if (need_weights) {
+    attn_output_weights =
+        attn_output_weights.view({bsz, num_heads, tgt_len, src_len});
+    if (average_attn_weights) {
+      // average attention weights over heads
+      attn_output_weights = attn_output_weights.sum(/*dim=*/1) / num_heads;
+    }
+    return std::make_tuple(attn_output, attn_output_weights);
+  } else {
+    return std::make_tuple(attn_output, Tensor());
+  }
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+inline std::tuple<Tensor, Tensor> multi_head_attention_forward(
+    const Tensor& query,
+    const Tensor& key,
+    const Tensor& value,
+    const MultiheadAttentionForwardFuncOptions& options) {
+  return detail::multi_head_attention_forward(
+      query,
+      key,
+      value,
+      options.embed_dim_to_check(),
+      options.num_heads(),
+      options.in_proj_weight(),
+      options.in_proj_bias(),
+      options.bias_k(),
+      options.bias_v(),
+      options.add_zero_attn(),
+      options.dropout_p(),
+      options.out_proj_weight(),
+      options.out_proj_bias(),
+      options.training(),
+      options.key_padding_mask(),
+      options.need_weights(),
+      options.attn_mask(),
+      options.use_separate_proj_weight(),
+      options.q_proj_weight(),
+      options.k_proj_weight(),
+      options.v_proj_weight(),
+      options.static_k(),
+      options.static_v(),
+      options.average_attn_weights());
+}
+
+} // namespace functional
+} // namespace nn
+} // namespace torch

venv/lib/python3.10/site-packages/torch/include/torch/csrc/api/include/torch/nn/functional/batchnorm.h

@@ -0,0 +1,83 @@
+#pragma once
+
+#include <c10/util/irange.h>
+#include <torch/nn/options/batchnorm.h>
+#include <torch/types.h>
+
+namespace torch {
+namespace nn {
+namespace functional {
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor batch_norm(
+    const Tensor& input,
+    const Tensor& running_mean,
+    const Tensor& running_var,
+    Tensor weight,
+    Tensor bias,
+    bool training,
+    c10::optional<double> momentum,
+    double eps) {
+  TORCH_CHECK(
+      input.dim() >= 2,
+      "Expected at least 2 input dimensions, but got ",
+      input.dim());
+  if (training) {
+    auto size = input.sizes();
+    int64_t size_prods = size[0];
+    for (const auto i : c10::irange(size.size() - 2)) {
+      size_prods *= size[i + 2];
+    }
+    TORCH_CHECK(
+        size_prods != 1,
+        "Expected more than 1 value per channel when training, got input size ",
+        size);
+  }
+
+  return torch::batch_norm(
+      input,
+      weight,
+      bias,
+      running_mean,
+      running_var,
+      training,
+      momentum.value(),
+      eps,
+      at::globalContext().userEnabledCuDNN());
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.batch_norm
+/// about the exact behavior of this functional.
+///
+/// See the documentation for `torch::nn::functional::BatchNormFuncOptions`
+/// class to learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::batch_norm(input, mean, variance,
+/// F::BatchNormFuncOptions().weight(weight).bias(bias).momentum(0.1).eps(1e-05).training(false));
+/// ```
+inline Tensor batch_norm(
+    const Tensor& input,
+    const Tensor& running_mean,
+    const Tensor& running_var,
+    const BatchNormFuncOptions& options = {}) {
+  return detail::batch_norm(
+      input,
+      running_mean,
+      running_var,
+      options.weight(),
+      options.bias(),
+      options.training(),
+      options.momentum(),
+      options.eps());
+}
+
+} // namespace functional
+} // namespace nn
+} // namespace torch

venv/lib/python3.10/site-packages/torch/include/torch/csrc/api/include/torch/nn/functional/conv.h

@@ -0,0 +1,301 @@
+#pragma once
+
+#include <torch/nn/options/conv.h>
+#include <torch/types.h>
+
+namespace torch {
+namespace nn {
+namespace functional {
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+
+inline std::string padding_unwrap(enumtype::kValid) {
+  return "valid";
+}
+
+inline std::string padding_unwrap(enumtype::kSame) {
+  return "same";
+}
+
+template <size_t D>
+IntArrayRef padding_unwrap(const ExpandingArray<D>& array) {
+  return array;
+}
+
+inline Tensor conv1d(
+    const Tensor& input,
+    const Tensor& weight,
+    const Tensor& bias,
+    ExpandingArray<1> stride,
+    const Conv1dFuncOptions::padding_t& padding,
+    ExpandingArray<1> dilation,
+    int64_t groups) {
+  return std::visit(
+      [&](const auto& pad) {
+        return torch::conv1d(
+            input, weight, bias, stride, padding_unwrap(pad), dilation, groups);
+      },
+      padding);
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.conv1d
+/// about the exact behavior of this functional.
+///
+/// See the documentation for `torch::nn::functional::Conv1dFuncOptions` class
+/// to learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::conv1d(x, weight, F::Conv1dFuncOptions().stride(1));
+/// ```
+inline Tensor conv1d(
+    const Tensor& input,
+    const Tensor& weight,
+    const Conv1dFuncOptions& options = {}) {
+  return detail::conv1d(
+      input,
+      weight,
+      options.bias(),
+      options.stride(),
+      options.padding(),
+      options.dilation(),
+      options.groups());
+}
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor conv2d(
+    const Tensor& input,
+    const Tensor& weight,
+    const Tensor& bias,
+    ExpandingArray<2> stride,
+    const Conv2dFuncOptions::padding_t& padding,
+    ExpandingArray<2> dilation,
+    int64_t groups) {
+  return std::visit(
+      [&](const auto& pad) {
+        return torch::conv2d(
+            input, weight, bias, stride, padding_unwrap(pad), dilation, groups);
+      },
+      padding);
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.conv2d
+/// about the exact behavior of this functional.
+///
+/// See the documentation for `torch::nn::functional::Conv2dFuncOptions` class
+/// to learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::conv2d(x, weight, F::Conv2dFuncOptions().stride(1));
+/// ```
+inline Tensor conv2d(
+    const Tensor& input,
+    const Tensor& weight,
+    const Conv2dFuncOptions& options = {}) {
+  return detail::conv2d(
+      input,
+      weight,
+      options.bias(),
+      options.stride(),
+      options.padding(),
+      options.dilation(),
+      options.groups());
+}
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor conv3d(
+    const Tensor& input,
+    const Tensor& weight,
+    const Tensor& bias,
+    ExpandingArray<3> stride,
+    const Conv3dFuncOptions::padding_t& padding,
+    ExpandingArray<3> dilation,
+    int64_t groups) {
+  return std::visit(
+      [&](const auto& pad) {
+        return torch::conv3d(
+            input, weight, bias, stride, padding_unwrap(pad), dilation, groups);
+      },
+      padding);
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.conv3d
+/// about the exact behavior of this functional.
+///
+/// See the documentation for `torch::nn::functional::Conv3dFuncOptions` class
+/// to learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::conv3d(x, weight, F::Conv3dFuncOptions().stride(1));
+/// ```
+inline Tensor conv3d(
+    const Tensor& input,
+    const Tensor& weight,
+    const Conv3dFuncOptions& options = {}) {
+  return detail::conv3d(
+      input,
+      weight,
+      options.bias(),
+      options.stride(),
+      options.padding(),
+      options.dilation(),
+      options.groups());
+}
+
+// ============================================================================
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor conv_transpose1d(
+    const Tensor& input,
+    const Tensor& weight,
+    const Tensor& bias,
+    IntArrayRef stride,
+    IntArrayRef padding,
+    IntArrayRef output_padding,
+    int64_t groups,
+    IntArrayRef dilation) {
+  return torch::conv_transpose1d(
+      input, weight, bias, stride, padding, output_padding, groups, dilation);
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.conv_transpose1d
+/// about the exact behavior of this functional.
+///
+/// See the documentation for
+/// `torch::nn::functional::ConvTranspose1dFuncOptions` class to learn what
+/// optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::conv_transpose1d(x, weight, F::ConvTranspose1dFuncOptions().stride(1));
+/// ```
+inline Tensor conv_transpose1d(
+    const Tensor& input,
+    const Tensor& weight,
+    const ConvTranspose1dFuncOptions& options = {}) {
+  return detail::conv_transpose1d(
+      input,
+      weight,
+      options.bias(),
+      options.stride(),
+      options.padding(),
+      options.output_padding(),
+      options.groups(),
+      options.dilation());
+}
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor conv_transpose2d(
+    const Tensor& input,
+    const Tensor& weight,
+    const Tensor& bias,
+    IntArrayRef stride,
+    IntArrayRef padding,
+    IntArrayRef output_padding,
+    int64_t groups,
+    IntArrayRef dilation) {
+  return torch::conv_transpose2d(
+      input, weight, bias, stride, padding, output_padding, groups, dilation);
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.conv_transpose2d
+/// about the exact behavior of this functional.
+///
+/// See the documentation for
+/// `torch::nn::functional::ConvTranspose2dFuncOptions` class to learn what
+/// optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::conv_transpose2d(x, weight, F::ConvTranspose2dFuncOptions().stride(1));
+/// ```
+inline Tensor conv_transpose2d(
+    const Tensor& input,
+    const Tensor& weight,
+    const ConvTranspose2dFuncOptions& options = {}) {
+  return detail::conv_transpose2d(
+      input,
+      weight,
+      options.bias(),
+      options.stride(),
+      options.padding(),
+      options.output_padding(),
+      options.groups(),
+      options.dilation());
+}
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor conv_transpose3d(
+    const Tensor& input,
+    const Tensor& weight,
+    const Tensor& bias,
+    IntArrayRef stride,
+    IntArrayRef padding,
+    IntArrayRef output_padding,
+    int64_t groups,
+    IntArrayRef dilation) {
+  return torch::conv_transpose3d(
+      input, weight, bias, stride, padding, output_padding, groups, dilation);
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.conv_transpose3d
+/// about the exact behavior of this functional.
+///
+/// See the documentation for
+/// `torch::nn::functional::ConvTranspose3dFuncOptions` class to learn what
+/// optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::conv_transpose3d(x, weight, F::ConvTranspose3dFuncOptions().stride(1));
+/// ```
+inline Tensor conv_transpose3d(
+    const Tensor& input,
+    const Tensor& weight,
+    const ConvTranspose3dFuncOptions& options = {}) {
+  return detail::conv_transpose3d(
+      input,
+      weight,
+      options.bias(),
+      options.stride(),
+      options.padding(),
+      options.output_padding(),
+      options.groups(),
+      options.dilation());
+}
+
+} // namespace functional
+} // namespace nn
+} // namespace torch

venv/lib/python3.10/site-packages/torch/include/torch/csrc/api/include/torch/nn/functional/distance.h

@@ -0,0 +1,88 @@
+#pragma once
+
+#include <torch/nn/options/distance.h>
+
+namespace torch {
+namespace nn {
+namespace functional {
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor cosine_similarity(
+    const Tensor& x1,
+    const Tensor& x2,
+    int64_t dim,
+    double eps) {
+  return torch::cosine_similarity(x1, x2, dim, eps);
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.cosine_similarity
+/// about the exact behavior of this functional.
+///
+/// See the documentation for
+/// `torch::nn::functional::CosineSimilarityFuncOptions` class to learn what
+/// optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::cosine_similarity(input1, input2,
+/// F::CosineSimilarityFuncOptions().dim(1));
+/// ```
+inline Tensor cosine_similarity(
+    const Tensor& x1,
+    const Tensor& x2,
+    const CosineSimilarityFuncOptions& options = {}) {
+  return detail::cosine_similarity(x1, x2, options.dim(), options.eps());
+}
+
+// ============================================================================
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor pairwise_distance(
+    const Tensor& x1,
+    const Tensor& x2,
+    double p,
+    double eps,
+    bool keepdim) {
+  return torch::pairwise_distance(x1, x2, p, eps, keepdim);
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.pairwise_distance
+/// about the exact behavior of this functional.
+///
+/// See the documentation for
+/// `torch::nn::functional::PairwiseDistanceFuncOptions` class to learn what
+/// optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::pairwise_distance(input1, input2, F::PairwiseDistanceFuncOptions().p(1));
+/// ```
+inline Tensor pairwise_distance(
+    const Tensor& x1,
+    const Tensor& x2,
+    const PairwiseDistanceFuncOptions& options = {}) {
+  return detail::pairwise_distance(
+      x1, x2, options.p(), options.eps(), options.keepdim());
+}
+
+// ============================================================================
+
+/// Computes the p-norm distance between every pair of row vectors in the input.
+/// This function will be faster if the rows are contiguous.
+inline Tensor pdist(const Tensor& input, double p = 2.0) {
+  return torch::pdist(input, p);
+}
+
+} // namespace functional
+} // namespace nn
+} // namespace torch

venv/lib/python3.10/site-packages/torch/include/torch/csrc/api/include/torch/nn/functional/dropout.h

@@ -0,0 +1,234 @@
+#pragma once
+
+#include <torch/nn/options/dropout.h>
+
+#include <utility>
+
+namespace torch {
+namespace nn {
+namespace functional {
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+
+inline Tensor dropout(Tensor input, double p, bool training, bool inplace) {
+  TORCH_CHECK(
+      p >= 0. && p <= 1.,
+      "dropout probability has to be between 0 and 1, but got ",
+      p);
+  if (inplace) {
+    return torch::dropout_(input, p, training);
+  } else {
+    return torch::dropout(input, p, training);
+  }
+}
+
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.dropout
+/// about the exact behavior of this functional.
+///
+/// See the documentation for `torch::nn::functional::DropoutFuncOptions` class
+/// to learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::dropout(input, F::DropoutFuncOptions().p(0.5));
+/// ```
+inline Tensor dropout(Tensor input, const DropoutFuncOptions& options = {}) {
+  return detail::dropout(
+      std::move(input), options.p(), options.training(), options.inplace());
+}
+
+// ============================================================================
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+
+template <int64_t unbatched_dim, int64_t batched_dim>
+inline Tensor _dropoutNd_helper(
+    Tensor input,
+    double p,
+    bool training,
+    bool inplace,
+    const char* fn_name) {
+  TORCH_CHECK(
+      p >= 0. && p <= 1.,
+      "dropout probability has to be between 0 and 1, but got ",
+      p);
+
+  auto inp_dim = input.dim();
+  auto is_batched = inp_dim == batched_dim;
+  if (!is_batched) {
+    if (inplace) {
+      input = input.unsqueeze_(0);
+    } else {
+      input = input.unsqueeze(0);
+    }
+  }
+
+  Tensor result;
+  if (inplace) {
+    result = torch::feature_dropout_(input, p, training);
+  } else {
+    result = torch::feature_dropout(input, p, training);
+  }
+
+  if (!is_batched) {
+    if (inplace) {
+      result = result.squeeze_(0);
+    } else {
+      result = result.squeeze(0);
+    }
+  }
+  return result;
+}
+
+inline Tensor dropout2d(Tensor input, double p, bool training, bool inplace) {
+  return _dropoutNd_helper<3, 4>(
+      std::move(input), p, training, inplace, "dropout2d");
+}
+
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.dropout2d
+/// about the exact behavior of this functional.
+///
+/// See the documentation for `torch::nn::functional::Dropout2dFuncOptions`
+/// class to learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::dropout2d(input, F::Dropout2dFuncOptions().p(0.5));
+/// ```
+inline Tensor dropout2d(
+    Tensor input,
+    const Dropout2dFuncOptions& options = {}) {
+  return detail::dropout2d(
+      std::move(input), options.p(), options.training(), options.inplace());
+}
+
+// ============================================================================
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+
+inline Tensor dropout3d(Tensor input, double p, bool training, bool inplace) {
+  return _dropoutNd_helper<4, 5>(
+      std::move(input), p, training, inplace, "dropout3d");
+}
+
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.dropout3d
+/// about the exact behavior of this functional.
+///
+/// See the documentation for `torch::nn::functional::Dropout3dFuncOptions`
+/// class to learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::dropout3d(input, F::Dropout3dFuncOptions().p(0.5));
+/// ```
+inline Tensor dropout3d(
+    Tensor input,
+    const Dropout3dFuncOptions& options = {}) {
+  return detail::dropout3d(
+      std::move(input), options.p(), options.training(), options.inplace());
+}
+
+// ============================================================================
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+
+inline Tensor alpha_dropout(
+    Tensor input,
+    double p,
+    bool training,
+    bool inplace) {
+  if (p < 0. || p > 1.) {
+    TORCH_CHECK(
+        false, "dropout probability has to be between 0 and 1, but got ", p);
+  }
+  return inplace ? torch::alpha_dropout_(input, p, training)
+                 : torch::alpha_dropout(input, p, training);
+}
+
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.alpha_dropout
+/// about the exact behavior of this functional.
+///
+/// See the documentation for `torch::nn::functional::AlphaDropoutFuncOptions`
+/// class to learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::alpha_dropout(input,
+/// F::AlphaDropoutFuncOptions().p(0.5).training(false));
+/// ```
+inline Tensor alpha_dropout(
+    Tensor input,
+    const AlphaDropoutFuncOptions& options = {}) {
+  return detail::alpha_dropout(
+      std::move(input), options.p(), options.training(), options.inplace());
+}
+
+// ============================================================================
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+
+inline Tensor feature_alpha_dropout(
+    Tensor input,
+    double p,
+    bool training,
+    bool inplace) {
+  if (p < 0. || p > 1.) {
+    TORCH_CHECK(
+        false, "dropout probability has to be between 0 and 1, but got ", p);
+  }
+  return inplace ? torch::feature_alpha_dropout_(input, p, training)
+                 : torch::feature_alpha_dropout(input, p, training);
+}
+
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.feature_alpha_dropout
+/// about the exact behavior of this functional.
+///
+/// See the documentation for
+/// `torch::nn::functional::FeatureAlphaDropoutFuncOptions` class to learn what
+/// optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::feature_alpha_dropout(input,
+/// F::FeatureAlphaDropoutFuncOptions().p(0.5).training(false));
+/// ```
+inline Tensor feature_alpha_dropout(
+    Tensor input,
+    const FeatureAlphaDropoutFuncOptions& options = {}) {
+  return detail::feature_alpha_dropout(
+      std::move(input), options.p(), options.training(), options.inplace());
+}
+
+} // namespace functional
+} // namespace nn
+} // namespace torch

venv/lib/python3.10/site-packages/torch/include/torch/csrc/api/include/torch/nn/functional/embedding.h

@@ -0,0 +1,211 @@
+#pragma once
+
+#include <torch/nn/options/embedding.h>
+
+namespace torch {
+namespace nn {
+namespace functional {
+
+inline Tensor one_hot(const Tensor& tensor, int64_t num_classes = -1) {
+  return torch::one_hot(tensor, num_classes);
+}
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline void _no_grad_embedding_renorm_(
+    Tensor weight,
+    const Tensor& input,
+    float max_norm,
+    float norm_type) {
+  torch::NoGradGuard no_grad;
+  torch::embedding_renorm_(weight, input, max_norm, norm_type);
+}
+
+inline Tensor embedding(
+    const Tensor& input,
+    const Tensor& weight,
+    c10::optional<int64_t> padding_idx,
+    c10::optional<double> max_norm,
+    double norm_type,
+    bool scale_grad_by_freq,
+    bool sparse) {
+  auto input_ = input;
+
+  if (padding_idx != c10::nullopt) {
+    if (*padding_idx > 0) {
+      TORCH_CHECK(
+          *padding_idx < weight.size(0),
+          "Padding_idx must be within num_embeddings");
+    } else if (*padding_idx < 0) {
+      TORCH_CHECK(
+          *padding_idx >= -weight.size(0),
+          "Padding_idx must be within num_embedding");
+      padding_idx = weight.size(0) + *padding_idx;
+    }
+  } else {
+    padding_idx = -1;
+  }
+
+  if (max_norm != c10::nullopt) {
+    input_ = input_.contiguous();
+    // NOLINTNEXTLINE(cppcoreguidelines-narrowing-conversions,bugprone-narrowing-conversions)
+    _no_grad_embedding_renorm_(weight, input_, *max_norm, norm_type);
+  }
+  return torch::embedding(
+      weight, input_, *padding_idx, scale_grad_by_freq, sparse);
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.embedding
+/// about the exact behavior of this functional.
+///
+/// See the documentation for `torch::nn::functional::EmbeddingFuncOptions`
+/// class to learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::embedding(input, weight,
+/// F::EmbeddingFuncOptions().norm_type(2.5).scale_grad_by_freq(true).sparse(true));
+/// ```
+inline Tensor embedding(
+    const Tensor& input,
+    const Tensor& weight,
+    const EmbeddingFuncOptions& options = {}) {
+  return detail::embedding(
+      input,
+      weight,
+      options.padding_idx(),
+      options.max_norm(),
+      options.norm_type(),
+      options.scale_grad_by_freq(),
+      options.sparse());
+}
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor embedding_bag(
+    const Tensor& input,
+    const Tensor& weight,
+    const Tensor& offsets,
+    c10::optional<double> max_norm,
+    double norm_type,
+    bool scale_grad_by_freq,
+    EmbeddingBagMode mode,
+    bool sparse,
+    const Tensor& per_sample_weights,
+    bool include_last_offset,
+    c10::optional<int64_t> padding_idx) {
+  auto input_ = input;
+  auto offsets_ = offsets;
+  auto per_sample_weights_ = per_sample_weights;
+  TORCH_CHECK(
+      !per_sample_weights_.defined() ||
+          input_.sizes() == per_sample_weights_.sizes(),
+      "embedding_bag: If per_sample_weights (",
+      per_sample_weights_.sizes(),
+      ") is not null, then it must have the same shape as the input (",
+      input_.sizes(),
+      ")");
+  if (input_.dim() == 2) {
+    TORCH_CHECK(
+        !offsets_.defined(),
+        "If input is 2D, then offsets has to be null, as input is treated is a mini-batch of fixed length sequences. However, found offsets of type Tensor");
+    offsets_ = torch::arange(
+        0,
+        input_.numel(),
+        input_.size(1),
+        torch::TensorOptions().dtype(torch::kLong).device(input_.device()));
+    input_ = input_.reshape(-1);
+    if (per_sample_weights_.defined()) {
+      per_sample_weights_ = per_sample_weights_.reshape(-1);
+    }
+  } else if (input_.dim() == 1) {
+    TORCH_CHECK(
+        offsets_.defined(), "offsets has to be a 1D Tensor but got null");
+    TORCH_CHECK(offsets_.dim() == 1, "offsets has to be a 1D Tensor");
+  } else {
+    TORCH_CHECK(
+        false,
+        "input has to be 1D or 2D Tensor, but got Tensor of dimension ",
+        input_.dim());
+  }
+
+  // NOLINTNEXTLINE(cppcoreguidelines-init-variables)
+  int mode_enum;
+  if (std::holds_alternative<enumtype::kSum>(mode)) {
+    mode_enum = 0;
+  } else if (std::holds_alternative<enumtype::kMean>(mode)) {
+    mode_enum = 1;
+  } else if (std::holds_alternative<enumtype::kMax>(mode)) {
+    mode_enum = 2;
+    TORCH_CHECK(
+        !scale_grad_by_freq,
+        "max mode does not support scaling the gradient by the frequency");
+    TORCH_CHECK(!sparse, "max mode does not support sparse weights");
+  } else {
+    TORCH_CHECK(false, "mode has to be one of sum, mean or max");
+  }
+
+  if (max_norm != c10::nullopt) {
+    // NOLINTNEXTLINE(cppcoreguidelines-narrowing-conversions,bugprone-narrowing-conversions)
+    _no_grad_embedding_renorm_(weight, input_, *max_norm, norm_type);
+  }
+
+  TORCH_CHECK(
+      !per_sample_weights_.defined() || std::get_if<enumtype::kSum>(&mode),
+      "embedding_bag: per_sample_weights was not null. ",
+      "per_sample_weights is only supported for mode='kSum' (got mode='",
+      torch::enumtype::get_enum_name(mode),
+      "').Please open a feature request on GitHub.");
+
+  return std::get<0>(torch::embedding_bag(
+      weight,
+      input_,
+      offsets_,
+      scale_grad_by_freq,
+      mode_enum,
+      sparse,
+      per_sample_weights_,
+      include_last_offset,
+      padding_idx));
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.embedding_bag
+/// about the exact behavior of this functional.
+///
+/// See the documentation for `torch::nn::functional::EmbeddingBagFuncOptions`
+/// class to learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::embedding_bag(input, weight,
+/// F::EmbeddingBagFuncOptions().mode(torch::kSum).offsets(offsets));
+/// ```
+inline Tensor embedding_bag(
+    const Tensor& input,
+    const Tensor& weight,
+    const EmbeddingBagFuncOptions& options = {}) {
+  return detail::embedding_bag(
+      input,
+      weight,
+      options.offsets(),
+      options.max_norm(),
+      options.norm_type(),
+      options.scale_grad_by_freq(),
+      options.mode(),
+      options.sparse(),
+      options.per_sample_weights(),
+      options.include_last_offset(),
+      options.padding_idx());
+}
+
+} // namespace functional
+} // namespace nn
+} // namespace torch

venv/lib/python3.10/site-packages/torch/include/torch/csrc/api/include/torch/nn/functional/fold.h

@@ -0,0 +1,102 @@
+#pragma once
+
+#include <torch/nn/options/fold.h>
+
+namespace torch {
+namespace nn {
+namespace functional {
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor fold(
+    const Tensor& input,
+    ExpandingArray<2> output_size,
+    ExpandingArray<2> kernel_size,
+    ExpandingArray<2> dilation,
+    ExpandingArray<2> padding,
+    ExpandingArray<2> stride) {
+  if (input.dim() == 3 || input.dim() == 2) {
+    return torch::col2im(
+        input, output_size, kernel_size, dilation, padding, stride);
+  } else {
+    TORCH_CHECK(
+        false,
+        "Input Error: Only unbatched (2D) or batched (3D) input Tensors are supported "
+        "(got ",
+        input.dim(),
+        "D)");
+  }
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.fold
+/// about the exact behavior of this functional.
+///
+/// See the documentation for `torch::nn::functional::FoldFuncOptions` class to
+/// learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::fold(input, F::FoldFuncOptions({3, 2}, {2, 2}));
+/// ```
+inline Tensor fold(const Tensor& input, const FoldFuncOptions& options) {
+  return detail::fold(
+      input,
+      options.output_size(),
+      options.kernel_size(),
+      options.dilation(),
+      options.padding(),
+      options.stride());
+}
+
+// ============================================================================
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor unfold(
+    const Tensor& input,
+    ExpandingArray<2> kernel_size,
+    ExpandingArray<2> dilation,
+    ExpandingArray<2> padding,
+    ExpandingArray<2> stride) {
+  if (input.dim() == 4) {
+    return torch::im2col(input, kernel_size, dilation, padding, stride);
+  } else {
+    TORCH_CHECK(
+        false,
+        "Input Error: Only 4D input Tensors are supported "
+        "(got ",
+        input.dim(),
+        "D)");
+  }
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.unfold
+/// about the exact behavior of this functional.
+///
+/// See the documentation for `torch::nn::functional::UnfoldFuncOptions` class
+/// to learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::unfold(input, F::UnfoldFuncOptions({2, 2}).padding(1).stride(2));
+/// ```
+inline Tensor unfold(const Tensor& input, const UnfoldFuncOptions& options) {
+  return detail::unfold(
+      input,
+      options.kernel_size(),
+      options.dilation(),
+      options.padding(),
+      options.stride());
+}
+
+} // namespace functional
+} // namespace nn
+} // namespace torch

venv/lib/python3.10/site-packages/torch/include/torch/csrc/api/include/torch/nn/functional/instancenorm.h

@@ -0,0 +1,63 @@
+#pragma once
+
+#include <torch/nn/options/instancenorm.h>
+
+namespace torch {
+namespace nn {
+namespace functional {
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor instance_norm(
+    const Tensor& input,
+    const Tensor& running_mean,
+    const Tensor& running_var,
+    const Tensor& weight,
+    const Tensor& bias,
+    bool use_input_stats,
+    double momentum,
+    double eps) {
+  return torch::instance_norm(
+      input,
+      weight,
+      bias,
+      running_mean,
+      running_var,
+      use_input_stats,
+      momentum,
+      eps,
+      at::globalContext().userEnabledCuDNN());
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.instance_norm
+/// about the exact behavior of this functional.
+///
+/// See the documentation for `torch::nn::functional::InstanceNormFuncOptions`
+/// class to learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::instance_norm(input,
+/// F::InstanceNormFuncOptions().running_mean(mean).running_var(variance).weight(weight).bias(bias).momentum(0.1).eps(1e-5));
+/// ```
+inline Tensor instance_norm(
+    const Tensor& input,
+    const InstanceNormFuncOptions& options = {}) {
+  return detail::instance_norm(
+      input,
+      options.running_mean(),
+      options.running_var(),
+      options.weight(),
+      options.bias(),
+      options.use_input_stats(),
+      options.momentum(),
+      options.eps());
+}
+
+} // namespace functional
+} // namespace nn
+} // namespace torch

venv/lib/python3.10/site-packages/torch/include/torch/csrc/api/include/torch/nn/functional/linear.h

@@ -0,0 +1,37 @@
+#pragma once
+
+#include <torch/types.h>
+
+namespace torch {
+namespace nn {
+namespace functional {
+
+inline Tensor bilinear(
+    const Tensor& input1,
+    const Tensor& input2,
+    const Tensor& weight,
+    const Tensor& bias = Tensor()) {
+  return torch::bilinear(input1, input2, weight, bias);
+}
+
+// ============================================================================
+
+inline Tensor linear(
+    const Tensor& input,
+    const Tensor& weight,
+    const Tensor& bias = {}) {
+  if (input.dim() == 2 && bias.defined()) {
+    // fused op is marginally faster
+    return torch::addmm(bias, input, weight.t());
+  } else {
+    auto output = input.matmul(weight.t());
+    if (bias.defined()) {
+      output += bias;
+    }
+    return output;
+  }
+}
+
+} // namespace functional
+} // namespace nn
+} // namespace torch

venv/lib/python3.10/site-packages/torch/include/torch/csrc/api/include/torch/nn/functional/loss.h

@@ -0,0 +1,1044 @@
+#pragma once
+
+#include <ATen/ExpandUtils.h>
+#include <torch/nn/functional/activation.h>
+#include <torch/nn/options/loss.h>
+
+namespace torch {
+namespace nn {
+namespace functional {
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor l1_loss(
+    const Tensor& input,
+    const Tensor& target,
+    L1LossFuncOptions::reduction_t reduction) {
+  return torch::l1_loss(input, target, enumtype::reduction_get_enum(reduction));
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.l1_loss
+/// about the exact behavior of this functional.
+///
+/// See the documentation for `torch::nn::functional::L1LossFuncOptions` class
+/// to learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::l1_loss(input, target, F::L1LossFuncOptions(torch::kNone));
+/// ```
+inline Tensor l1_loss(
+    const Tensor& input,
+    const Tensor& target,
+    const L1LossFuncOptions& options = {}) {
+  return detail::l1_loss(input, target, options.reduction());
+}
+
+// ============================================================================
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor kl_div(
+    const Tensor& input,
+    const Tensor& target,
+    KLDivFuncOptions::reduction_t reduction,
+    bool log_target = false) {
+  // NOLINTNEXTLINE(cppcoreguidelines-init-variables)
+  torch::Reduction::Reduction reduction_enum;
+
+  if (std::holds_alternative<enumtype::kMean>(reduction)) {
+    TORCH_WARN(
+        "reduction: 'mean' divides the total loss by both the batch size and the support size."
+        "'batchmean' divides only by the batch size, and aligns with the KL div math definition."
+        "'mean' will be changed to behave the same as 'batchmean' in the next major release.");
+  }
+
+  // special case for batchmean
+  if (std::holds_alternative<enumtype::kBatchMean>(reduction)) {
+    reduction_enum = torch::Reduction::Sum;
+  } else {
+    reduction_enum = enumtype::reduction_get_enum(reduction);
+  }
+
+  auto reduced = torch::kl_div(input, target, reduction_enum, log_target);
+
+  if (std::holds_alternative<enumtype::kBatchMean>(reduction) &&
+      input.dim() != 0) {
+    reduced = reduced / input.sizes()[0];
+  }
+
+  return reduced;
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.kl_div
+/// about the exact behavior of this functional.
+///
+/// See the documentation for `torch::nn::functional::KLDivFuncOptions` class to
+/// learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::kl_div(input, target,
+/// F::KLDivFuncOptions.reduction(torch::kNone).log_target(false));
+/// ```
+inline Tensor kl_div(
+    const Tensor& input,
+    const Tensor& target,
+    const KLDivFuncOptions& options = {}) {
+  return detail::kl_div(
+      input, target, options.reduction(), options.log_target());
+}
+
+// ============================================================================
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor mse_loss(
+    const Tensor& input,
+    const Tensor& target,
+    MSELossFuncOptions::reduction_t reduction) {
+  if (!(target.sizes() == input.sizes())) {
+    TORCH_WARN(
+        "Using a target size (",
+        target.sizes(),
+        ") that is different to the input size (",
+        input.sizes(),
+        "). ",
+        "This will likely lead to incorrect results due to broadcasting. ",
+        "Please ensure they have the same size.");
+  }
+  std::vector<torch::Tensor> broadcast_tensors =
+      torch::broadcast_tensors({input, target});
+  auto expanded_input = broadcast_tensors[0];
+  auto expanded_target = broadcast_tensors[1];
+  return torch::mse_loss(
+      expanded_input, expanded_target, enumtype::reduction_get_enum(reduction));
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.mse_loss
+/// about the exact behavior of this functional.
+///
+/// See the documentation for `torch::nn::functional::MSELossFuncOptions` class
+/// to learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::mse_loss(input, target, F::MSELossFuncOptions(torch::kNone));
+/// ```
+inline Tensor mse_loss(
+    const Tensor& input,
+    const Tensor& target,
+    const MSELossFuncOptions& options = {}) {
+  return detail::mse_loss(input, target, options.reduction());
+}
+
+// ============================================================================
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor binary_cross_entropy(
+    const Tensor& input,
+    const Tensor& target,
+    const Tensor& weight,
+    BinaryCrossEntropyFuncOptions::reduction_t reduction) {
+  auto reduction_enum = enumtype::reduction_get_enum(reduction);
+
+  if (target.sizes() != input.sizes()) {
+    TORCH_CHECK(
+        false,
+        "Using a target size (",
+        target.sizes(),
+        ") ",
+        "that is different to the input size (",
+        input.sizes(),
+        ") is deprecated. ",
+        "Please ensure they have the same size.");
+  }
+
+  auto weight_ = weight;
+  if (weight_.defined()) {
+    auto new_size = at::infer_size(target.sizes(), weight_.sizes());
+    weight_ = weight_.expand(new_size);
+  }
+
+  return torch::binary_cross_entropy(input, target, weight_, reduction_enum);
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.binary_cross_entropy
+/// about the exact behavior of this functional.
+///
+/// See the documentation for
+/// `torch::nn::functional::BinaryCrossEntropyFuncOptions` class to learn what
+/// optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::binary_cross_entropy(input, target,
+/// F::BinaryCrossEntropyFuncOptions().weight(weight));
+/// ```
+inline Tensor binary_cross_entropy(
+    const Tensor& input,
+    const Tensor& target,
+    const BinaryCrossEntropyFuncOptions& options = {}) {
+  return detail::binary_cross_entropy(
+      input, target, options.weight(), options.reduction());
+}
+
+// ============================================================================
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor hinge_embedding_loss(
+    const Tensor& input,
+    const Tensor& target,
+    double margin,
+    HingeEmbeddingLossFuncOptions::reduction_t reduction) {
+  return torch::hinge_embedding_loss(
+      input, target, margin, enumtype::reduction_get_enum(reduction));
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.hinge_embedding_loss
+/// about the exact behavior of this functional.
+///
+/// See the documentation for
+/// `torch::nn::functional::HingeEmbeddingLossFuncOptions` class to learn what
+/// optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::hinge_embedding_loss(input, target,
+/// F::HingeEmbeddingLossFuncOptions().margin(2));
+/// ```
+inline Tensor hinge_embedding_loss(
+    const Tensor& input,
+    const Tensor& target,
+    const HingeEmbeddingLossFuncOptions& options = {}) {
+  return detail::hinge_embedding_loss(
+      input, target, options.margin(), options.reduction());
+}
+
+// ============================================================================
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor multi_margin_loss(
+    const Tensor& input,
+    const Tensor& target,
+    int64_t p,
+    double margin,
+    const Tensor& weight,
+    MultiMarginLossFuncOptions::reduction_t reduction) {
+  TORCH_CHECK(p == 1 || p == 2, "only p == 1 and p == 2 supported");
+  if (weight.defined()) {
+    TORCH_CHECK(weight.dim() == 1, "weight must be one-dimensional");
+  }
+
+  return torch::multi_margin_loss(
+      input,
+      target,
+      p,
+      margin,
+      weight,
+      enumtype::reduction_get_enum(reduction));
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.multi_margin_loss
+/// about the exact behavior of this functional.
+///
+/// See the documentation for
+/// `torch::nn::functional::MultiMarginLossFuncOptions` class to learn what
+/// optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::multi_margin_loss(input, target,
+/// F::MultiMarginLossFuncOptions().margin(2).weight(weight));
+/// ```
+inline Tensor multi_margin_loss(
+    const Tensor& input,
+    const Tensor& target,
+    const MultiMarginLossFuncOptions& options = {}) {
+  return detail::multi_margin_loss(
+      input,
+      target,
+      options.p(),
+      options.margin(),
+      options.weight(),
+      options.reduction());
+}
+
+// ============================================================================
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor cosine_embedding_loss(
+    const Tensor& input1,
+    const Tensor& input2,
+    const Tensor& target,
+    double margin,
+    CosineEmbeddingLossFuncOptions::reduction_t reduction) {
+  return torch::cosine_embedding_loss(
+      input1, input2, target, margin, enumtype::reduction_get_enum(reduction));
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.cosine_embedding_loss
+/// about the exact behavior of this functional.
+///
+/// See the documentation for
+/// `torch::nn::functional::CosineEmbeddingLossFuncOptions` class to learn what
+/// optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::cosine_embedding_loss(input1, input2, target,
+/// F::CosineEmbeddingLossFuncOptions().margin(0.5));
+/// ```
+inline Tensor cosine_embedding_loss(
+    const Tensor& input1,
+    const Tensor& input2,
+    const Tensor& target,
+    const CosineEmbeddingLossFuncOptions& options = {}) {
+  return detail::cosine_embedding_loss(
+      input1, input2, target, options.margin(), options.reduction());
+}
+
+// ============================================================================
+
+inline Tensor _smooth_l1_loss(
+    const Tensor& input,
+    const Tensor& target,
+    double beta = 1.) {
+  auto t = torch::abs(input - target);
+  return torch::where(t < beta, 0.5 * torch::pow(t, 2) / beta, t - 0.5 * beta);
+}
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor smooth_l1_loss(
+    const Tensor& input,
+    const Tensor& target,
+    SmoothL1LossFuncOptions::reduction_t reduction,
+    c10::optional<double> beta_opt = c10::nullopt) {
+  if (target.sizes() != input.sizes()) {
+    TORCH_WARN(
+        "Using a target size (",
+        target.sizes(),
+        ") that is different to the input size (",
+        input.sizes(),
+        "). ",
+        "This will likely lead to incorrect results due to broadcasting. ",
+        "Please ensure they have the same size.");
+  }
+  double beta = beta_opt.value_or(1.0);
+
+  std::vector<Tensor> expanded_tensors =
+      torch::broadcast_tensors({input, target});
+  return torch::smooth_l1_loss(
+      expanded_tensors[0],
+      expanded_tensors[1],
+      enumtype::reduction_get_enum(reduction),
+      beta);
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.smooth_l1_loss
+/// about the exact behavior of this functional.
+///
+/// See the documentation for `torch::nn::functional::SmoothL1LossFuncOptions`
+/// class to learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::smooth_l1_loss(input, target, F::SmoothL1LossFuncOptions(torch::kNone));
+/// ```
+inline Tensor smooth_l1_loss(
+    const Tensor& input,
+    const Tensor& target,
+    const SmoothL1LossFuncOptions& options = {}) {
+  return detail::smooth_l1_loss(
+      input, target, options.reduction(), options.beta());
+}
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.smooth_l1_loss
+/// about the exact behavior of this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::smooth_l1_loss(input, target, /*options=*/torch::kNone, /*beta=*/0.5);
+/// ```
+inline Tensor smooth_l1_loss(
+    const Tensor& input,
+    const Tensor& target,
+    const SmoothL1LossFuncOptions& options,
+    double beta) {
+  TORCH_CHECK(
+      options.beta() == c10::nullopt,
+      "expected beta not to be provided in 'options', but got ",
+      options.beta().value());
+  return detail::smooth_l1_loss(input, target, options.reduction(), beta);
+}
+
+// ============================================================================
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor huber_loss(
+    const Tensor& input,
+    const Tensor& target,
+    HuberLossFuncOptions::reduction_t reduction,
+    double delta = 1.) {
+  if (target.sizes() != input.sizes()) {
+    TORCH_WARN(
+        "Using a target size (",
+        target.sizes(),
+        ") that is different to the input size (",
+        input.sizes(),
+        "). ",
+        "This will likely lead to incorrect results due to broadcasting. ",
+        "Please ensure they have the same size.");
+  }
+
+  std::vector<Tensor> expanded_tensors =
+      torch::broadcast_tensors({input, target});
+  return torch::huber_loss(
+      expanded_tensors[0],
+      expanded_tensors[1],
+      enumtype::reduction_get_enum(reduction),
+      delta);
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.huber_loss
+/// about the exact behavior of this functional.
+///
+/// See the documentation for `torch::nn::functional::HuberLossFuncOptions`
+/// class to learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::huber_loss(input, target,
+/// F::HuberLossFuncOptions().reduction(torch::kNone).delta(0.5));
+/// ```
+inline Tensor huber_loss(
+    const Tensor& input,
+    const Tensor& target,
+    const HuberLossFuncOptions& options = {}) {
+  return detail::huber_loss(
+      input, target, options.reduction(), options.delta());
+}
+
+// ============================================================================
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor multilabel_margin_loss(
+    const Tensor& input,
+    const Tensor& target,
+    MultilabelMarginLossFuncOptions::reduction_t reduction) {
+  return torch::multilabel_margin_loss(
+      input, target, enumtype::reduction_get_enum(reduction));
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.multilabel_margin_loss
+/// about the exact behavior of this functional.
+///
+/// See the documentation for
+/// `torch::nn::functional::MultilabelMarginLossFuncOptions` class to learn what
+/// optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::multilabel_margin_loss(input, target,
+/// F::MultilabelMarginLossFuncOptions(torch::kNone));
+/// ```
+inline Tensor multilabel_margin_loss(
+    const Tensor& input,
+    const Tensor& target,
+    const MultilabelMarginLossFuncOptions& options = {}) {
+  return detail::multilabel_margin_loss(input, target, options.reduction());
+}
+
+// ============================================================================
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor soft_margin_loss(
+    const Tensor& input,
+    const Tensor& target,
+    SoftMarginLossFuncOptions::reduction_t reduction) {
+  return torch::soft_margin_loss(
+      input, target, enumtype::reduction_get_enum(reduction));
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.soft_margin_loss
+/// about the exact behavior of this functional.
+///
+/// See the documentation for `torch::nn::functional::SoftMarginLossFuncOptions`
+/// class to learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::soft_margin_loss(input, target,
+/// F::SoftMarginLossFuncOptions(torch::kNone));
+/// ```
+inline Tensor soft_margin_loss(
+    const Tensor& input,
+    const Tensor& target,
+    const SoftMarginLossFuncOptions& options = {}) {
+  return detail::soft_margin_loss(input, target, options.reduction());
+}
+
+// ============================================================================
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor multilabel_soft_margin_loss(
+    const Tensor& input,
+    const Tensor& target,
+    const Tensor& weight,
+    MultilabelSoftMarginLossFuncOptions::reduction_t reduction) {
+  auto loss =
+      -(target * torch::log_sigmoid(input) +
+        (1 - target) * torch::log_sigmoid(-input));
+  if (weight.defined()) {
+    loss = loss * weight;
+  }
+
+  auto class_dim = input.dim() - 1;
+  auto C = input.size(class_dim);
+  loss = loss.sum(class_dim) / C; // only return N loss values
+
+  Tensor ret;
+
+  if (std::holds_alternative<enumtype::kNone>(reduction)) {
+    ret = loss;
+  } else if (std::holds_alternative<enumtype::kMean>(reduction)) {
+    ret = loss.mean();
+  } else if (std::holds_alternative<enumtype::kSum>(reduction)) {
+    ret = loss.sum();
+  } else {
+    ret = input;
+    TORCH_INTERNAL_ASSERT(
+        false, enumtype::get_enum_name(reduction), " is not valid");
+  }
+  return ret;
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.multilabel_soft_margin_loss
+/// about the exact behavior of this functional.
+///
+/// See the documentation for
+/// `torch::nn::functional::MultilabelSoftMarginLossFuncOptions` class to learn
+/// what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::multilabel_soft_margin_loss(input, target,
+/// F::MultilabelSoftMarginLossFuncOptions().reduction(torch::kNone).weight(weight));
+/// ```
+inline Tensor multilabel_soft_margin_loss(
+    const Tensor& input,
+    const Tensor& target,
+    const MultilabelSoftMarginLossFuncOptions& options = {}) {
+  return detail::multilabel_soft_margin_loss(
+      input, target, options.weight(), options.reduction());
+}
+
+// ============================================================================
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor triplet_margin_loss(
+    const Tensor& anchor,
+    const Tensor& positive,
+    const Tensor& negative,
+    double margin,
+    double p,
+    double eps,
+    bool swap,
+    TripletMarginLossFuncOptions::reduction_t reduction) {
+  return torch::triplet_margin_loss(
+      anchor,
+      positive,
+      negative,
+      margin,
+      p,
+      eps,
+      swap,
+      enumtype::reduction_get_enum(reduction));
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.triplet_margin_loss
+/// about the exact behavior of this functional.
+///
+/// See the documentation for
+/// `torch::nn::functional::TripletMarginLossFuncOptions` class to learn what
+/// optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::triplet_margin_loss(anchor, positive, negative,
+/// F::TripletMarginLossFuncOptions().margin(1.0));
+/// ```
+inline Tensor triplet_margin_loss(
+    const Tensor& anchor,
+    const Tensor& positive,
+    const Tensor& negative,
+    const TripletMarginLossFuncOptions& options = {}) {
+  return detail::triplet_margin_loss(
+      anchor,
+      positive,
+      negative,
+      options.margin(),
+      options.p(),
+      options.eps(),
+      options.swap(),
+      options.reduction());
+}
+
+// ============================================================================
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor triplet_margin_with_distance_loss(
+    const Tensor& anchor,
+    const Tensor& positive,
+    const Tensor& negative,
+    c10::optional<TripletMarginWithDistanceLossFuncOptions::distance_function_t>
+        distance_function,
+    double margin,
+    bool swap,
+    TripletMarginWithDistanceLossFuncOptions::reduction_t reduction) {
+  Tensor dist_pos, dist_neg;
+  if (distance_function.has_value()) {
+    auto distance_function_impl = distance_function.value();
+    dist_pos = distance_function_impl(anchor, positive);
+    dist_neg = distance_function_impl(anchor, negative);
+  } else {
+    dist_pos = pairwise_distance(anchor, positive);
+    dist_neg = pairwise_distance(anchor, negative);
+  }
+
+  if (swap) {
+    Tensor dist_swap;
+    if (distance_function.has_value()) {
+      dist_swap = distance_function.value()(positive, negative);
+    } else {
+      dist_swap = pairwise_distance(positive, negative);
+    }
+    dist_neg = torch::min(dist_neg, dist_swap);
+  }
+
+  auto loss = torch::clamp_min(dist_pos - dist_neg + margin, 0);
+
+  Tensor ret;
+  if (std::holds_alternative<enumtype::kNone>(reduction)) {
+    ret = loss;
+  } else if (std::holds_alternative<enumtype::kMean>(reduction)) {
+    ret = loss.mean();
+  } else if (std::holds_alternative<enumtype::kSum>(reduction)) {
+    ret = loss.sum();
+  } else {
+    ret = anchor;
+    TORCH_INTERNAL_ASSERT(
+        false, enumtype::get_enum_name(reduction), " is not valid");
+  }
+  return ret;
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.triplet_margin_with_distance_loss
+/// about the exact behavior of this functional.
+///
+/// See the documentation for
+/// `torch::nn::functional::TripletMarginWithDistanceLossFuncOptions` class to
+/// learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::triplet_margin_with_distance_loss(anchor, positive, negative,
+/// F::TripletMarginWithDistanceLossFuncOptions().margin(1.0));
+/// ```
+inline Tensor triplet_margin_with_distance_loss(
+    const Tensor& anchor,
+    const Tensor& positive,
+    const Tensor& negative,
+    const TripletMarginWithDistanceLossFuncOptions& options = {}) {
+  return detail::triplet_margin_with_distance_loss(
+      anchor,
+      positive,
+      negative,
+      options.distance_function(),
+      options.margin(),
+      options.swap(),
+      options.reduction());
+}
+
+// ============================================================================
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor ctc_loss(
+    const Tensor& log_probs,
+    const Tensor& targets,
+    const Tensor& input_lengths,
+    const Tensor& target_lengths,
+    int64_t blank,
+    CTCLossFuncOptions::reduction_t reduction,
+    bool zero_infinity) {
+  return torch::ctc_loss(
+      log_probs,
+      targets,
+      input_lengths,
+      target_lengths,
+      blank,
+      enumtype::reduction_get_enum(reduction),
+      zero_infinity);
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.ctc_loss
+/// about the exact behavior of this functional.
+///
+/// See the documentation for `torch::nn::functional::CTCLossFuncOptions` class
+/// to learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::ctc_loss(log_probs, targets, input_lengths, target_lengths,
+/// F::CTCLossFuncOptions().reduction(torch::kNone));
+/// ```
+inline Tensor ctc_loss(
+    const Tensor& log_probs,
+    const Tensor& targets,
+    const Tensor& input_lengths,
+    const Tensor& target_lengths,
+    const CTCLossFuncOptions& options = {}) {
+  return detail::ctc_loss(
+      log_probs,
+      targets,
+      input_lengths,
+      target_lengths,
+      options.blank(),
+      options.reduction(),
+      options.zero_infinity());
+}
+
+// ============================================================================
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor poisson_nll_loss(
+    const Tensor& input,
+    const Tensor& target,
+    bool log_input,
+    bool full,
+    double eps,
+    PoissonNLLLossFuncOptions::reduction_t reduction) {
+  return torch::poisson_nll_loss(
+      input,
+      target,
+      log_input,
+      full,
+      eps,
+      enumtype::reduction_get_enum(reduction));
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.poisson_nll_loss
+/// about the exact behavior of this functional.
+///
+/// See the documentation for `torch::nn::functional::PoissonNLLLossFuncOptions`
+/// class to learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::poisson_nll_loss(input, target,
+/// F::PoissonNLLLossFuncOptions().reduction(torch::kNone));
+/// ```
+inline Tensor poisson_nll_loss(
+    const Tensor& input,
+    const Tensor& target,
+    const PoissonNLLLossFuncOptions& options = {}) {
+  return detail::poisson_nll_loss(
+      input,
+      target,
+      options.log_input(),
+      options.full(),
+      options.eps(),
+      options.reduction());
+}
+
+// ============================================================================
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor margin_ranking_loss(
+    const Tensor& input1,
+    const Tensor& input2,
+    const Tensor& target,
+    double margin,
+    MarginRankingLossFuncOptions::reduction_t reduction) {
+  TORCH_CHECK(
+      input1.dim() == input2.dim() && input1.dim() == target.dim(),
+      "margin_ranking_loss : All input tensors should have same dimension but got sizes: "
+      "input1: ",
+      input1.sizes(),
+      ", input2: ",
+      input2.sizes(),
+      ", target: ",
+      target.sizes());
+  return torch::margin_ranking_loss(
+      input1, input2, target, margin, enumtype::reduction_get_enum(reduction));
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.margin_ranking_loss
+/// about the exact behavior of this functional.
+///
+/// See the documentation for
+/// `torch::nn::functional::MarginRankingLossFuncOptions` class to learn what
+/// optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::margin_ranking_loss(input1, input2, target,
+/// F::MarginRankingLossFuncOptions().margin(0.5).reduction(torch::kSum));
+/// ```
+inline Tensor margin_ranking_loss(
+    const Tensor& input1,
+    const Tensor& input2,
+    const Tensor& target,
+    const MarginRankingLossFuncOptions& options = {}) {
+  return detail::margin_ranking_loss(
+      input1, input2, target, options.margin(), options.reduction());
+}
+
+// ============================================================================
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor nll_loss(
+    const Tensor& input,
+    const Tensor& target,
+    const Tensor& weight,
+    int64_t ignore_index,
+    const NLLLossFuncOptions::reduction_t reduction) {
+  if (input.dim() < 2) {
+    TORCH_CHECK(false, "Expected 2 or more dimensions (got ", input.dim(), ")");
+  }
+
+  if (input.sizes()[0] != target.sizes()[0]) {
+    TORCH_CHECK(
+        false,
+        "Expected input batch_size (",
+        input.sizes()[0],
+        ") to match target batch_size (",
+        target.sizes()[0],
+        ").");
+  }
+
+  return torch::nll_loss_nd(
+      input,
+      target,
+      weight,
+      enumtype::reduction_get_enum(reduction),
+      ignore_index);
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.nll_loss
+/// about the exact behavior of this functional.
+///
+/// See the documentation for `torch::nn::functional::NLLLossFuncOptions` class
+/// to learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::nll_loss(input, target,
+/// F::NLLLossFuncOptions().ignore_index(-100).reduction(torch::kMean));
+/// ```
+inline Tensor nll_loss(
+    const Tensor& input,
+    const Tensor& target,
+    const NLLLossFuncOptions& options = {}) {
+  return detail::nll_loss(
+      input,
+      target,
+      options.weight(),
+      options.ignore_index(),
+      options.reduction());
+}
+
+// ============================================================================
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor cross_entropy(
+    const Tensor& input,
+    const Tensor& target,
+    const Tensor& weight,
+    int64_t ignore_index,
+    CrossEntropyFuncOptions::reduction_t reduction,
+    double label_smoothing) {
+  return torch::cross_entropy_loss(
+      input,
+      target,
+      weight,
+      enumtype::reduction_get_enum(reduction),
+      ignore_index,
+      label_smoothing);
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.cross_entropy
+/// about the exact behavior of this functional.
+///
+/// See the documentation for `torch::nn::functional::CrossEntropyFuncOptions`
+/// class to learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::cross_entropy(input, target,
+/// F::CrossEntropyFuncOptions().ignore_index(-100).reduction(torch::kMean));
+/// ```
+inline Tensor cross_entropy(
+    const Tensor& input,
+    const Tensor& target,
+    const CrossEntropyFuncOptions& options = {}) {
+  return detail::cross_entropy(
+      input,
+      target,
+      options.weight(),
+      options.ignore_index(),
+      options.reduction(),
+      options.label_smoothing());
+}
+
+// ============================================================================
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor binary_cross_entropy_with_logits(
+    const Tensor& input,
+    const Tensor& target,
+    const Tensor& weight,
+    BinaryCrossEntropyWithLogitsFuncOptions::reduction_t reduction,
+    const Tensor& pos_weight) {
+  TORCH_CHECK(
+      target.sizes() == input.sizes(),
+      "Target size (",
+      target.sizes(),
+      ") must be the same as input size (",
+      input.sizes(),
+      ")");
+
+  return torch::binary_cross_entropy_with_logits(
+      input,
+      target,
+      weight,
+      pos_weight,
+      enumtype::reduction_get_enum(reduction));
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.binary_cross_entropy_with_logits
+/// about the exact behavior of this functional.
+///
+/// See the documentation for
+/// `torch::nn::functional::BinaryCrossEntropyWithLogitsFuncOptions` class to
+/// learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::binary_cross_entropy_with_logits(input, target,
+/// F::BinaryCrossEntropyWithLogitsFuncOptions().pos_weight(pos_weight).reduction(torch::kSum));
+/// ```
+inline Tensor binary_cross_entropy_with_logits(
+    const Tensor& input,
+    const Tensor& target,
+    const BinaryCrossEntropyWithLogitsFuncOptions& options = {}) {
+  return detail::binary_cross_entropy_with_logits(
+      input,
+      target,
+      options.weight(),
+      options.reduction(),
+      options.pos_weight());
+}
+
+} // namespace functional
+} // namespace nn
+} // namespace torch

venv/lib/python3.10/site-packages/torch/include/torch/csrc/api/include/torch/nn/functional/normalization.h

@@ -0,0 +1,211 @@
+#pragma once
+
+#include <torch/nn/functional/padding.h>
+#include <torch/nn/functional/pooling.h>
+#include <torch/nn/options/normalization.h>
+#include <torch/types.h>
+
+namespace torch {
+namespace nn {
+namespace functional {
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor normalize(
+    const Tensor& input,
+    double p,
+    int64_t dim,
+    double eps,
+    c10::optional<Tensor> out) {
+  if (out == c10::nullopt) {
+    auto denom = input.norm(p, dim, true).clamp_min(eps).expand_as(input);
+    return input / denom;
+  } else {
+    auto denom = input.norm(p, dim, true).clamp_min(eps).expand_as(input);
+    return torch::div_out(*out, input, denom);
+  }
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.normalize
+/// about the exact behavior of this functional.
+///
+/// See the documentation for `torch::nn::functional::NormalizeFuncOptions`
+/// class to learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::normalize(input, F::NormalizeFuncOptions().p(1).dim(-1));
+/// ```
+inline Tensor normalize(
+    const Tensor& input,
+    NormalizeFuncOptions options = {}) {
+  return detail::normalize(
+      input, options.p(), options.dim(), options.eps(), options.out());
+}
+
+// ============================================================================
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor layer_norm(
+    const Tensor& input,
+    const std::vector<int64_t>& normalized_shape,
+    const Tensor& weight,
+    const Tensor& bias,
+    double eps) {
+  return torch::layer_norm(input, normalized_shape, weight, bias, eps);
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.layer_norm
+/// about the exact behavior of this functional.
+///
+/// See the documentation for `torch::nn::functional::LayerNormFuncOptions`
+/// class to learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::layer_norm(input, F::LayerNormFuncOptions({2, 2}).eps(2e-5));
+/// ```
+inline Tensor layer_norm(
+    const Tensor& input,
+    const LayerNormFuncOptions& options) {
+  return detail::layer_norm(
+      input,
+      options.normalized_shape(),
+      options.weight(),
+      options.bias(),
+      options.eps());
+}
+
+// ============================================================================
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor local_response_norm(
+    const Tensor& input,
+    int64_t size,
+    double alpha,
+    double beta,
+    double k) {
+  auto dim = input.dim();
+  TORCH_CHECK(
+      dim >= 3,
+      "Expected 3D or higher dimensionality input (got ",
+      dim,
+      " dimensions)");
+  auto div = input.mul(input).unsqueeze(1);
+  if (dim == 3) {
+    div = detail::pad(
+        div,
+        /*pad=*/{0, 0, size / 2, (size - 1) / 2},
+        /*mode=*/torch::kConstant,
+        /*value=*/0);
+    div = detail::avg_pool2d(
+              div,
+              /*kernel_size=*/{size, 1},
+              /*stride=*/1,
+              /*padding=*/0,
+              /*ceil_mode=*/false,
+              /*count_include_pad=*/true,
+              /*divisor_override=*/c10::nullopt)
+              .squeeze(1);
+  } else {
+    auto sizes = input.sizes();
+    div = div.view({sizes[0], 1, sizes[1], sizes[2], -1});
+    div = detail::pad(
+        div,
+        /*pad=*/{0, 0, 0, 0, size / 2, (size - 1) / 2},
+        /*mode=*/torch::kConstant,
+        /*value=*/0);
+    div = detail::avg_pool3d(
+              div,
+              /*kernel_size=*/{size, 1, 1},
+              /*stride=*/1,
+              /*padding=*/0,
+              /*ceil_mode=*/false,
+              /*count_include_pad=*/true,
+              /*divisor_override=*/c10::nullopt)
+              .squeeze(1);
+    div = div.view(sizes);
+  }
+  div = div.mul(alpha).add(k).pow(beta);
+  return input / div;
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.local_response_norm
+/// about the exact behavior of this functional.
+///
+/// See the documentation for
+/// `torch::nn::functional::LocalResponseNormFuncOptions` class to learn what
+/// optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::local_response_norm(x, F::LocalResponseNormFuncOptions(2));
+/// ```
+inline Tensor local_response_norm(
+    const Tensor& input,
+    const LocalResponseNormFuncOptions& options) {
+  return detail::local_response_norm(
+      input, options.size(), options.alpha(), options.beta(), options.k());
+}
+
+// ============================================================================
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor group_norm(
+    const Tensor& input,
+    int64_t num_groups,
+    const Tensor& weight,
+    const Tensor& bias,
+    double eps) {
+  return torch::group_norm(
+      input,
+      num_groups,
+      weight,
+      bias,
+      eps,
+      at::globalContext().userEnabledCuDNN());
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.group_norm
+/// about the exact behavior of this functional.
+///
+/// See the documentation for `torch::nn::functional::GroupNormFuncOptions`
+/// class to learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::group_norm(input, F::GroupNormFuncOptions(2).eps(2e-5));
+/// ```
+inline Tensor group_norm(
+    const Tensor& input,
+    const GroupNormFuncOptions& options) {
+  return detail::group_norm(
+      input,
+      options.num_groups(),
+      options.weight(),
+      options.bias(),
+      options.eps());
+}
+
+} // namespace functional
+} // namespace nn
+} // namespace torch

venv/lib/python3.10/site-packages/torch/include/torch/csrc/api/include/torch/nn/functional/padding.h

@@ -0,0 +1,58 @@
+#pragma once
+
+#include <ATen/PadNd.h>
+#include <torch/nn/options/padding.h>
+
+namespace torch {
+namespace nn {
+namespace functional {
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor pad(
+    const Tensor& input,
+    IntArrayRef pad,
+    PadFuncOptions::mode_t mode,
+    double value) {
+  const auto mode_enum = [&] {
+    if (std::holds_alternative<enumtype::kConstant>(mode)) {
+      return at::padding_mode::constant;
+    } else if (std::holds_alternative<enumtype::kReflect>(mode)) {
+      return at::padding_mode::reflect;
+    } else if (std::holds_alternative<enumtype::kReplicate>(mode)) {
+      return at::padding_mode::replicate;
+    } else if (std::holds_alternative<enumtype::kCircular>(mode)) {
+      return at::padding_mode::circular;
+    }
+    TORCH_CHECK(false, "Unrecognised padding mode");
+  }();
+
+  c10::optional<double> fill_value;
+  if (value != 0.0) {
+    fill_value = value;
+  }
+  return at::_pad_enum(input, pad, static_cast<int64_t>(mode_enum), fill_value);
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.pad
+/// about the exact behavior of this functional.
+///
+/// See the documentation for `torch::nn::functional::PadFuncOptions` class to
+/// learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::pad(input, F::PadFuncOptions({1, 2, 2, 1, 1,
+/// 2}).mode(torch::kReplicate));
+/// ```
+inline Tensor pad(const Tensor& input, const PadFuncOptions& options) {
+  return detail::pad(input, options.pad(), options.mode(), options.value());
+}
+
+} // namespace functional
+} // namespace nn
+} // namespace torch

venv/lib/python3.10/site-packages/torch/include/torch/csrc/api/include/torch/nn/functional/pixelshuffle.h

@@ -0,0 +1,47 @@
+#pragma once
+
+#include <torch/nn/options/pixelshuffle.h>
+
+namespace torch {
+namespace nn {
+namespace functional {
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor pixel_shuffle(const Tensor& input, int64_t upscale_factor) {
+  return torch::pixel_shuffle(input, upscale_factor);
+}
+
+inline Tensor pixel_unshuffle(const Tensor& input, int64_t downscale_factor) {
+  return torch::pixel_unshuffle(input, downscale_factor);
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.pixel_shuffle
+/// about the exact behavior of this functional.
+///
+/// See the documentation for `torch::nn::functional::PixelShuffleFuncOptions`
+/// class to learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::pixel_shuffle(x, F::PixelShuffleFuncOptions(2));
+/// ```
+inline Tensor pixel_shuffle(
+    const Tensor& input,
+    const PixelShuffleFuncOptions& options) {
+  return detail::pixel_shuffle(input, options.upscale_factor());
+}
+
+inline Tensor pixel_unshuffle(
+    const Tensor& input,
+    const PixelUnshuffleFuncOptions& options) {
+  return detail::pixel_unshuffle(input, options.downscale_factor());
+}
+
+} // namespace functional
+} // namespace nn
+} // namespace torch

venv/lib/python3.10/site-packages/torch/include/torch/csrc/api/include/torch/nn/functional/pooling.h

@@ -0,0 +1,1153 @@
+#pragma once
+
+#include <c10/util/irange.h>
+#include <torch/nn/functional/activation.h>
+#include <torch/nn/modules/utils.h>
+#include <torch/nn/options/pooling.h>
+
+namespace torch {
+namespace nn {
+namespace functional {
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor avg_pool1d(
+    const Tensor& input,
+    ExpandingArray<1> kernel_size,
+    ExpandingArray<1> stride,
+    ExpandingArray<1> padding,
+    bool ceil_mode,
+    bool count_include_pad) {
+  return torch::avg_pool1d(
+      input, kernel_size, stride, padding, ceil_mode, count_include_pad);
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.avg_pool1d
+/// about the exact behavior of this functional.
+///
+/// See the documentation for `torch::nn::functional::AvgPool1dFuncOptions`
+/// class to learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::avg_pool1d(x, F::AvgPool1dFuncOptions(3).stride(2));
+/// ```
+inline Tensor avg_pool1d(
+    const Tensor& input,
+    const AvgPool1dFuncOptions& options) {
+  return avg_pool1d(
+      input,
+      options.kernel_size(),
+      options.stride(),
+      options.padding(),
+      options.ceil_mode(),
+      options.count_include_pad());
+}
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor avg_pool2d(
+    const Tensor& input,
+    ExpandingArray<2> kernel_size,
+    ExpandingArray<2> stride,
+    ExpandingArray<2> padding,
+    bool ceil_mode,
+    bool count_include_pad,
+    c10::optional<int64_t> divisor_override) {
+  return torch::avg_pool2d(
+      input,
+      kernel_size,
+      stride,
+      padding,
+      ceil_mode,
+      count_include_pad,
+      divisor_override);
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.avg_pool2d
+/// about the exact behavior of this functional.
+///
+/// See the documentation for `torch::nn::functional::AvgPool2dFuncOptions`
+/// class to learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::avg_pool2d(x, F::AvgPool2dFuncOptions(3).stride(2));
+/// ```
+inline Tensor avg_pool2d(
+    const Tensor& input,
+    const AvgPool2dFuncOptions& options) {
+  return detail::avg_pool2d(
+      input,
+      options.kernel_size(),
+      options.stride(),
+      options.padding(),
+      options.ceil_mode(),
+      options.count_include_pad(),
+      options.divisor_override());
+}
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor avg_pool3d(
+    const Tensor& input,
+    ExpandingArray<3> kernel_size,
+    ExpandingArray<3> stride,
+    ExpandingArray<3> padding,
+    bool ceil_mode,
+    bool count_include_pad,
+    c10::optional<int64_t> divisor_override) {
+  return torch::avg_pool3d(
+      input,
+      kernel_size,
+      stride,
+      padding,
+      ceil_mode,
+      count_include_pad,
+      divisor_override);
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.avg_pool3d
+/// about the exact behavior of this functional.
+///
+/// See the documentation for `torch::nn::functional::AvgPool3dFuncOptions`
+/// class to learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::avg_pool3d(x, F::AvgPool3dFuncOptions(3).stride(2));
+/// ```
+inline Tensor avg_pool3d(
+    const Tensor& input,
+    const AvgPool3dFuncOptions& options) {
+  return detail::avg_pool3d(
+      input,
+      options.kernel_size(),
+      options.stride(),
+      options.padding(),
+      options.ceil_mode(),
+      options.count_include_pad(),
+      options.divisor_override());
+}
+
+// ============================================================================
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor max_pool1d(
+    const Tensor& input,
+    ExpandingArray<1> kernel_size,
+    ExpandingArray<1> stride,
+    ExpandingArray<1> padding,
+    ExpandingArray<1> dilation,
+    bool ceil_mode) {
+  return torch::max_pool1d(
+      input, kernel_size, stride, padding, dilation, ceil_mode);
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.max_pool1d
+/// about the exact behavior of this functional.
+///
+/// See the documentation for `torch::nn::functional::MaxPool1dFuncOptions`
+/// class to learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::max_pool1d(x, F::MaxPool1dFuncOptions(3).stride(2));
+/// ```
+inline Tensor max_pool1d(
+    const Tensor& input,
+    const MaxPool1dFuncOptions& options) {
+  return detail::max_pool1d(
+      input,
+      options.kernel_size(),
+      options.stride(),
+      options.padding(),
+      options.dilation(),
+      options.ceil_mode());
+}
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline std::tuple<Tensor, Tensor> max_pool1d_with_indices(
+    const Tensor& input,
+    ExpandingArray<1> kernel_size,
+    ExpandingArray<1> stride,
+    ExpandingArray<1> padding,
+    ExpandingArray<1> dilation,
+    bool ceil_mode) {
+  return torch::max_pool1d_with_indices(
+      input, kernel_size, stride, padding, dilation, ceil_mode);
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See the documentation for `torch::nn::functional::MaxPool1dFuncOptions`
+/// class to learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::max_pool1d_with_indices(x, F::MaxPool1dFuncOptions(3).stride(2));
+/// ```
+inline std::tuple<Tensor, Tensor> max_pool1d_with_indices(
+    const Tensor& input,
+    const MaxPool1dFuncOptions& options) {
+  return detail::max_pool1d_with_indices(
+      input,
+      options.kernel_size(),
+      options.stride(),
+      options.padding(),
+      options.dilation(),
+      options.ceil_mode());
+}
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor max_pool2d(
+    const Tensor& input,
+    ExpandingArray<2> kernel_size,
+    ExpandingArray<2> stride,
+    ExpandingArray<2> padding,
+    ExpandingArray<2> dilation,
+    bool ceil_mode) {
+  return torch::max_pool2d(
+      input, kernel_size, stride, padding, dilation, ceil_mode);
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.max_pool2d
+/// about the exact behavior of this functional.
+///
+/// See the documentation for `torch::nn::functional::MaxPool2dFuncOptions`
+/// class to learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::max_pool2d(x, F::MaxPool2dFuncOptions(3).stride(2));
+/// ```
+inline Tensor max_pool2d(
+    const Tensor& input,
+    const MaxPool2dFuncOptions& options) {
+  return detail::max_pool2d(
+      input,
+      options.kernel_size(),
+      options.stride(),
+      options.padding(),
+      options.dilation(),
+      options.ceil_mode());
+}
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline std::tuple<Tensor, Tensor> max_pool2d_with_indices(
+    const Tensor& input,
+    ExpandingArray<2> kernel_size,
+    ExpandingArray<2> stride,
+    ExpandingArray<2> padding,
+    ExpandingArray<2> dilation,
+    bool ceil_mode) {
+  return torch::max_pool2d_with_indices(
+      input, kernel_size, stride, padding, dilation, ceil_mode);
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See the documentation for `torch::nn::functional::MaxPool2dFuncOptions`
+/// class to learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::max_pool2d_with_indices(x, F::MaxPool2dFuncOptions(3).stride(2));
+/// ```
+inline std::tuple<Tensor, Tensor> max_pool2d_with_indices(
+    const Tensor& input,
+    const MaxPool2dFuncOptions& options) {
+  return detail::max_pool2d_with_indices(
+      input,
+      options.kernel_size(),
+      options.stride(),
+      options.padding(),
+      options.dilation(),
+      options.ceil_mode());
+}
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor max_pool3d(
+    const Tensor& input,
+    ExpandingArray<3> kernel_size,
+    ExpandingArray<3> stride,
+    ExpandingArray<3> padding,
+    ExpandingArray<3> dilation,
+    bool ceil_mode) {
+  return torch::max_pool3d(
+      input, kernel_size, stride, padding, dilation, ceil_mode);
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.max_pool3d
+/// about the exact behavior of this functional.
+///
+/// See the documentation for `torch::nn::functional::MaxPool3dFuncOptions`
+/// class to learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::max_pool3d(x, F::MaxPool3dFuncOptions(3).stride(2));
+/// ```
+inline Tensor max_pool3d(
+    const Tensor& input,
+    const MaxPool3dFuncOptions& options) {
+  return detail::max_pool3d(
+      input,
+      options.kernel_size(),
+      options.stride(),
+      options.padding(),
+      options.dilation(),
+      options.ceil_mode());
+}
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline std::tuple<Tensor, Tensor> max_pool3d_with_indices(
+    const Tensor& input,
+    ExpandingArray<3> kernel_size,
+    ExpandingArray<3> stride,
+    ExpandingArray<3> padding,
+    ExpandingArray<3> dilation,
+    bool ceil_mode) {
+  return torch::max_pool3d_with_indices(
+      input, kernel_size, stride, padding, dilation, ceil_mode);
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See the documentation for `torch::nn::functional::MaxPool3dFuncOptions`
+/// class to learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::max_pool3d_with_indices(x, F::MaxPool3dFuncOptions(3).stride(2));
+/// ```
+inline std::tuple<Tensor, Tensor> max_pool3d_with_indices(
+    const Tensor& input,
+    const MaxPool3dFuncOptions& options) {
+  return detail::max_pool3d_with_indices(
+      input,
+      options.kernel_size(),
+      options.stride(),
+      options.padding(),
+      options.dilation(),
+      options.ceil_mode());
+}
+
+// ============================================================================
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline std::tuple<Tensor, Tensor> adaptive_max_pool1d_with_indices(
+    const Tensor& input,
+    ExpandingArray<1> output_size) {
+  return torch::adaptive_max_pool1d(input, output_size);
+}
+} // namespace detail
+
+/// See the documentation for
+/// `torch::nn::functional::AdaptiveMaxPool1dFuncOptions` class to learn what
+/// optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::adaptive_max_pool1d_with_indices(x, F::AdaptiveMaxPool1dFuncOptions(3));
+/// ```
+inline std::tuple<Tensor, Tensor> adaptive_max_pool1d_with_indices(
+    const Tensor& input,
+    const AdaptiveMaxPool1dFuncOptions& options) {
+  return detail::adaptive_max_pool1d_with_indices(input, options.output_size());
+}
+
+namespace detail {
+inline Tensor adaptive_max_pool1d(
+    const Tensor& input,
+    ExpandingArray<1> output_size) {
+  return std::get<0>(adaptive_max_pool1d_with_indices(input, output_size));
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.adaptive_max_pool1d
+/// about the exact behavior of this functional.
+///
+/// See the documentation for
+/// `torch::nn::functional::AdaptiveMaxPool1dFuncOptions` class to learn what
+/// optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::adaptive_max_pool1d(x, F::AdaptiveMaxPool1dFuncOptions(3));
+/// ```
+inline Tensor adaptive_max_pool1d(
+    const Tensor& input,
+    const AdaptiveMaxPool1dFuncOptions& options) {
+  return detail::adaptive_max_pool1d(input, options.output_size());
+}
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline std::tuple<Tensor, Tensor> adaptive_max_pool2d_with_indices(
+    const Tensor& input,
+    ExpandingArrayWithOptionalElem<2> output_size) {
+  auto output_size_ =
+      torch::nn::modules::utils::_list_with_default(output_size, input.sizes());
+  return torch::adaptive_max_pool2d(input, output_size_);
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See the documentation for
+/// `torch::nn::functional::AdaptiveMaxPool2dFuncOptions` class to learn what
+/// optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::adaptive_max_pool2d_with_indices(x, F::AdaptiveMaxPool2dFuncOptions(3));
+/// ```
+inline std::tuple<Tensor, Tensor> adaptive_max_pool2d_with_indices(
+    const Tensor& input,
+    const AdaptiveMaxPool2dFuncOptions& options) {
+  return detail::adaptive_max_pool2d_with_indices(input, options.output_size());
+}
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor adaptive_max_pool2d(
+    const Tensor& input,
+    ExpandingArrayWithOptionalElem<2> output_size) {
+  return std::get<0>(adaptive_max_pool2d_with_indices(input, output_size));
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.adaptive_max_pool2d
+/// about the exact behavior of this functional.
+///
+/// See the documentation for
+/// `torch::nn::functional::AdaptiveMaxPool2dFuncOptions` class to learn what
+/// optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::adaptive_max_pool2d(x, F::AdaptiveMaxPool2dFuncOptions(3));
+/// ```
+inline Tensor adaptive_max_pool2d(
+    const Tensor& input,
+    const AdaptiveMaxPool2dFuncOptions& options) {
+  return detail::adaptive_max_pool2d(input, options.output_size());
+}
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline std::tuple<Tensor, Tensor> adaptive_max_pool3d_with_indices(
+    const Tensor& input,
+    ExpandingArrayWithOptionalElem<3> output_size) {
+  auto output_size_ =
+      torch::nn::modules::utils::_list_with_default(output_size, input.sizes());
+  return torch::adaptive_max_pool3d(input, output_size_);
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See the documentation for
+/// `torch::nn::functional::AdaptiveMaxPool3dFuncOptions` class to learn what
+/// optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::adaptive_max_pool3d_with_indices(x, F::AdaptiveMaxPool3dFuncOptions(3));
+/// ```
+inline std::tuple<Tensor, Tensor> adaptive_max_pool3d_with_indices(
+    const Tensor& input,
+    const AdaptiveMaxPool3dFuncOptions& options) {
+  return detail::adaptive_max_pool3d_with_indices(input, options.output_size());
+}
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor adaptive_max_pool3d(
+    const Tensor& input,
+    ExpandingArrayWithOptionalElem<3> output_size) {
+  return std::get<0>(adaptive_max_pool3d_with_indices(input, output_size));
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.adaptive_max_pool3d
+/// about the exact behavior of this functional.
+///
+/// See the documentation for
+/// `torch::nn::functional::AdaptiveMaxPool3dFuncOptions` class to learn what
+/// optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::adaptive_max_pool3d(x, F::AdaptiveMaxPool3dFuncOptions(3));
+/// ```
+inline Tensor adaptive_max_pool3d(
+    const Tensor& input,
+    const AdaptiveMaxPool3dFuncOptions& options) {
+  return detail::adaptive_max_pool3d(input, options.output_size());
+}
+
+// ============================================================================
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor adaptive_avg_pool1d(
+    const Tensor& input,
+    ExpandingArray<1> output_size) {
+  return torch::adaptive_avg_pool1d(input, output_size);
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.adaptive_avg_pool1d
+/// about the exact behavior of this functional.
+///
+/// See the documentation for
+/// `torch::nn::functional::AdaptiveAvgPool1dFuncOptions` class to learn what
+/// optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::adaptive_avg_pool1d(x, F::AdaptiveAvgPool1dFuncOptions(3));
+/// ```
+inline Tensor adaptive_avg_pool1d(
+    const Tensor& input,
+    const AdaptiveAvgPool1dFuncOptions& options) {
+  return detail::adaptive_avg_pool1d(input, options.output_size());
+}
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor adaptive_avg_pool2d(
+    const Tensor& input,
+    ExpandingArrayWithOptionalElem<2> output_size) {
+  auto output_size_ =
+      torch::nn::modules::utils::_list_with_default(output_size, input.sizes());
+  return torch::adaptive_avg_pool2d(input, output_size_);
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.adaptive_avg_pool2d
+/// about the exact behavior of this functional.
+///
+/// See the documentation for
+/// `torch::nn::functional::AdaptiveAvgPool2dFuncOptions` class to learn what
+/// optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::adaptive_avg_pool2d(x, F::AdaptiveAvgPool2dFuncOptions(3));
+/// ```
+inline Tensor adaptive_avg_pool2d(
+    const Tensor& input,
+    const AdaptiveAvgPool2dFuncOptions& options) {
+  return detail::adaptive_avg_pool2d(input, options.output_size());
+}
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor adaptive_avg_pool3d(
+    const Tensor& input,
+    ExpandingArrayWithOptionalElem<3> output_size) {
+  auto output_size_ =
+      torch::nn::modules::utils::_list_with_default(output_size, input.sizes());
+  return torch::adaptive_avg_pool3d(input, output_size_);
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.adaptive_avg_pool3d
+/// about the exact behavior of this functional.
+///
+/// See the documentation for
+/// `torch::nn::functional::AdaptiveAvgPool3dFuncOptions` class to learn what
+/// optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::adaptive_avg_pool3d(x, F::AdaptiveAvgPool3dFuncOptions(3));
+/// ```
+inline Tensor adaptive_avg_pool3d(
+    const Tensor& input,
+    const AdaptiveAvgPool3dFuncOptions& options) {
+  return detail::adaptive_avg_pool3d(input, options.output_size());
+}
+
+// ============================================================================
+
+inline std::vector<int64_t> _unpool_output_size(
+    const Tensor& input,
+    const IntArrayRef& kernel_size,
+    const IntArrayRef& stride,
+    const IntArrayRef& padding,
+    const c10::optional<std::vector<int64_t>>& output_size) {
+  auto input_size = input.sizes();
+  std::vector<int64_t> default_size;
+  for (const auto d : c10::irange(kernel_size.size())) {
+    default_size.push_back(
+        (input_size[input_size.size() - kernel_size.size() + d] - 1) *
+            stride[d] +
+        kernel_size[d] - 2 * padding[d]);
+  }
+  if (!output_size) {
+    return default_size;
+  } else {
+    std::vector<int64_t> output_size_;
+    if (output_size->size() == kernel_size.size() + 2) {
+      output_size_ = IntArrayRef(*output_size).slice(2).vec();
+    }
+    if (output_size_.size() != kernel_size.size()) {
+      TORCH_CHECK(
+          false,
+          "output_size should be a sequence containing ",
+          kernel_size.size(),
+          " or ",
+          kernel_size.size() + 2,
+          " elements, but it has a length of '",
+          output_size_.size(),
+          "'");
+    }
+    for (const auto d : c10::irange(kernel_size.size())) {
+      const auto min_size = default_size[d] - stride[d];
+      const auto max_size = default_size[d] + stride[d];
+      if (!(min_size <= output_size_[d] && output_size_[d] <= max_size)) {
+        TORCH_CHECK(
+            false,
+            "invalid output_size ",
+            output_size_,
+            " (dim ",
+            d,
+            " must be between ",
+            min_size,
+            " and ",
+            max_size,
+            ")");
+      }
+    }
+    return output_size_;
+  }
+}
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor max_unpool1d(
+    const Tensor& input,
+    const Tensor& indices,
+    ExpandingArray<1> kernel_size,
+    ExpandingArray<1> stride,
+    ExpandingArray<1> padding,
+    const c10::optional<std::vector<int64_t>>& output_size) {
+  auto output_size_ =
+      _unpool_output_size(input, kernel_size, stride, padding, output_size);
+  output_size_.push_back(1);
+  return torch::max_unpool2d(
+             input.unsqueeze(-1), indices.unsqueeze(-1), output_size_)
+      .squeeze(-1);
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.max_unpool1d
+/// about the exact behavior of this functional.
+///
+/// See the documentation for `torch::nn::functional::MaxUnpool1dFuncOptions`
+/// class to learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::max_unpool1d(x, indices,
+/// F::MaxUnpool1dFuncOptions(3).stride(2).padding(1));
+/// ```
+inline Tensor max_unpool1d(
+    const Tensor& input,
+    const Tensor& indices,
+    const MaxUnpool1dFuncOptions& options) {
+  return detail::max_unpool1d(
+      input,
+      indices,
+      options.kernel_size(),
+      options.stride(),
+      options.padding(),
+      options.output_size());
+}
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor max_unpool2d(
+    const Tensor& input,
+    const Tensor& indices,
+    ExpandingArray<2> kernel_size,
+    ExpandingArray<2> stride,
+    ExpandingArray<2> padding,
+    const c10::optional<std::vector<int64_t>>& output_size) {
+  auto output_size_ =
+      _unpool_output_size(input, kernel_size, stride, padding, output_size);
+
+  return torch::max_unpool2d(input, indices, output_size_);
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.max_unpool2d
+/// about the exact behavior of this functional.
+///
+/// See the documentation for `torch::nn::functional::MaxUnpool2dFuncOptions`
+/// class to learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::max_unpool2d(x, indices,
+/// F::MaxUnpool2dFuncOptions(3).stride(2).padding(1));
+/// ```
+inline Tensor max_unpool2d(
+    const Tensor& input,
+    const Tensor& indices,
+    const MaxUnpool2dFuncOptions& options) {
+  return detail::max_unpool2d(
+      input,
+      indices,
+      options.kernel_size(),
+      options.stride(),
+      options.padding(),
+      options.output_size());
+}
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor max_unpool3d(
+    const Tensor& input,
+    const Tensor& indices,
+    ExpandingArray<3> kernel_size,
+    ExpandingArray<3> stride,
+    ExpandingArray<3> padding,
+    const c10::optional<std::vector<int64_t>>& output_size) {
+  auto output_size_ =
+      _unpool_output_size(input, kernel_size, stride, padding, output_size);
+
+  return torch::max_unpool3d(input, indices, output_size_, stride, padding);
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.max_unpool3d
+/// about the exact behavior of this functional.
+///
+/// See the documentation for `torch::nn::functional::MaxUnpool3dFuncOptions`
+/// class to learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::max_unpool3d(x, indices, F::MaxUnpool3dFuncOptions(3));
+/// ```
+inline Tensor max_unpool3d(
+    const Tensor& input,
+    const Tensor& indices,
+    const MaxUnpool3dFuncOptions& options) {
+  return detail::max_unpool3d(
+      input,
+      indices,
+      options.kernel_size(),
+      options.stride(),
+      options.padding(),
+      options.output_size());
+}
+
+// ============================================================================
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline std::tuple<Tensor, Tensor> fractional_max_pool2d_with_indices(
+    const Tensor& input,
+    const ExpandingArray<2>& kernel_size,
+    const c10::optional<ExpandingArray<2>>& output_size,
+    const c10::optional<ExpandingArray<2, double>>& output_ratio,
+    const Tensor& _random_samples) {
+  if (output_size == c10::nullopt && output_ratio == c10::nullopt) {
+    TORCH_CHECK(
+        false,
+        "fractional_max_pool2d requires specifying either ",
+        "an output_size or an output_ratio");
+  }
+  c10::optional<ExpandingArray<2>> output_size_ = output_size;
+  if (output_size_ == c10::nullopt) {
+    TORCH_INTERNAL_ASSERT(output_ratio != c10::nullopt);
+    output_size_ = {
+        (int64_t)(static_cast<double>(input.size(-2)) *
+                  (*output_ratio.value())[0]),
+        (int64_t)(static_cast<double>(input.size(-1)) *
+                  (*output_ratio.value())[1])};
+  }
+
+  Tensor _random_samples_ = _random_samples;
+  if (!_random_samples_.defined()) {
+    auto n_batch = input.dim() == 3 ? 1 : input.size(0);
+    _random_samples_ = torch::rand(
+        {n_batch, input.size(-3), 2},
+        torch::TensorOptions().dtype(input.dtype()).device(input.device()));
+  }
+  return torch::fractional_max_pool2d(
+      input, kernel_size, *output_size_, _random_samples_);
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See the documentation for
+/// `torch::nn::functional::FractionalMaxPool2dFuncOptions` class to learn what
+/// optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::fractional_max_pool2d_with_indices(x,
+/// F::FractionalMaxPool2dFuncOptions(3).output_size(2));
+/// ```
+inline std::tuple<Tensor, Tensor> fractional_max_pool2d_with_indices(
+    const Tensor& input,
+    const FractionalMaxPool2dFuncOptions& options) {
+  return detail::fractional_max_pool2d_with_indices(
+      input,
+      options.kernel_size(),
+      options.output_size(),
+      options.output_ratio(),
+      options._random_samples());
+}
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor fractional_max_pool2d(
+    const Tensor& input,
+    ExpandingArray<2> kernel_size,
+    c10::optional<ExpandingArray<2>> output_size,
+    c10::optional<ExpandingArray<2, double>> output_ratio,
+    const Tensor& _random_samples) {
+  return std::get<0>(fractional_max_pool2d_with_indices(
+      input, kernel_size, output_size, output_ratio, _random_samples));
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See the documentation for
+/// `torch::nn::functional::FractionalMaxPool2dFuncOptions` class to learn what
+/// optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::fractional_max_pool2d(x,
+/// F::FractionalMaxPool2dFuncOptions(3).output_size(2));
+/// ```
+inline Tensor fractional_max_pool2d(
+    const Tensor& input,
+    const FractionalMaxPool2dFuncOptions& options) {
+  return detail::fractional_max_pool2d(
+      input,
+      options.kernel_size(),
+      options.output_size(),
+      options.output_ratio(),
+      options._random_samples());
+}
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline std::tuple<Tensor, Tensor> fractional_max_pool3d_with_indices(
+    const Tensor& input,
+    const ExpandingArray<3>& kernel_size,
+    const c10::optional<ExpandingArray<3>>& output_size,
+    const c10::optional<ExpandingArray<3, double>>& output_ratio,
+    const Tensor& _random_samples) {
+  if (output_size == c10::nullopt && output_ratio == c10::nullopt) {
+    TORCH_CHECK(
+        false,
+        "fractional_max_pool3d requires specifying either ",
+        "an output_size or an output_ratio");
+  }
+
+  c10::optional<ExpandingArray<3>> output_size_ = output_size;
+  if (output_size_ == c10::nullopt) {
+    TORCH_INTERNAL_ASSERT(output_ratio != c10::nullopt);
+    output_size_ = {
+        (int64_t)(static_cast<double>(input.size(-3)) *
+                  (*output_ratio.value())[0]),
+        (int64_t)(static_cast<double>(input.size(-2)) *
+                  (*output_ratio.value())[1]),
+        (int64_t)(static_cast<double>(input.size(-1)) *
+                  (*output_ratio.value())[2])};
+  }
+
+  Tensor _random_samples_ = _random_samples;
+  if (!_random_samples_.defined()) {
+    auto n_batch = input.dim() == 4 ? 1 : input.size(0);
+    _random_samples_ = torch::rand(
+        {n_batch, input.size(-4), 3},
+        torch::TensorOptions().dtype(input.dtype()).device(input.device()));
+  }
+  return torch::fractional_max_pool3d(
+      input, kernel_size, *output_size_, _random_samples_);
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See the documentation for
+/// `torch::nn::functional::FractionalMaxPool3dFuncOptions` class to learn what
+/// optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::fractional_max_pool3d_with_indices(x,
+/// F::FractionalMaxPool3dFuncOptions(3).output_size(2));
+/// ```
+inline std::tuple<Tensor, Tensor> fractional_max_pool3d_with_indices(
+    const Tensor& input,
+    const FractionalMaxPool3dFuncOptions& options) {
+  return detail::fractional_max_pool3d_with_indices(
+      input,
+      options.kernel_size(),
+      options.output_size(),
+      options.output_ratio(),
+      options._random_samples());
+}
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor fractional_max_pool3d(
+    const Tensor& input,
+    ExpandingArray<3> kernel_size,
+    c10::optional<ExpandingArray<3>> output_size,
+    c10::optional<ExpandingArray<3, double>> output_ratio,
+    const Tensor& _random_samples) {
+  return std::get<0>(fractional_max_pool3d_with_indices(
+      input, kernel_size, output_size, output_ratio, _random_samples));
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See the documentation for
+/// `torch::nn::functional::FractionalMaxPool3dFuncOptions` class to learn what
+/// optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::fractional_max_pool3d(x,
+/// F::FractionalMaxPool3dFuncOptions(3).output_size(2));
+/// ```
+inline Tensor fractional_max_pool3d(
+    const Tensor& input,
+    const FractionalMaxPool3dFuncOptions& options) {
+  return detail::fractional_max_pool3d(
+      input,
+      options.kernel_size(),
+      options.output_size(),
+      options.output_ratio(),
+      options._random_samples());
+}
+
+// ============================================================================
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor lp_pool1d(
+    const Tensor& input,
+    double norm_type,
+    ExpandingArray<1> kernel_size,
+    ExpandingArray<1> stride,
+    bool ceil_mode) {
+  Tensor out = detail::avg_pool1d(
+      input.pow(norm_type),
+      kernel_size,
+      stride,
+      /*padding=*/0,
+      ceil_mode,
+      /*count_include_pad=*/true);
+
+  return (torch::sign(out) * relu(torch::abs(out)))
+      .mul((*kernel_size)[0])
+      .pow(1. / norm_type);
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.lp_pool1d
+/// about the exact behavior of this functional.
+///
+/// See the documentation for `torch::nn::functional::LPPool1dFuncOptions` class
+/// to learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::lp_pool1d(x, F::LPPool1dFuncOptions(2, 3).stride(2));
+/// ```
+inline Tensor lp_pool1d(
+    const Tensor& input,
+    const LPPool1dFuncOptions& options) {
+  return detail::lp_pool1d(
+      input,
+      options.norm_type(),
+      options.kernel_size(),
+      options.stride(),
+      options.ceil_mode());
+}
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor lp_pool2d(
+    const Tensor& input,
+    double norm_type,
+    ExpandingArray<2> kernel_size,
+    ExpandingArray<2> stride,
+    bool ceil_mode) {
+  int kw = (*kernel_size)[0];
+  int kh = (*kernel_size)[1];
+  Tensor out = detail::avg_pool2d(
+      input.pow(norm_type),
+      kernel_size,
+      stride,
+      /*padding=*/0,
+      ceil_mode,
+      /*count_include_pad=*/true,
+      /*divisor_override=*/c10::nullopt);
+
+  return (torch::sign(out) * relu(torch::abs(out)))
+      .mul(kw * kh)
+      .pow(1. / norm_type);
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.lp_pool2d
+/// about the exact behavior of this functional.
+///
+/// See the documentation for `torch::nn::functional::LPPool2dFuncOptions` class
+/// to learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::lp_pool2d(x, F::LPPool2dFuncOptions(2, {2, 3}).stride(2));
+/// ```
+inline Tensor lp_pool2d(
+    const Tensor& input,
+    const LPPool2dFuncOptions& options) {
+  return detail::lp_pool2d(
+      input,
+      options.norm_type(),
+      options.kernel_size(),
+      options.stride(),
+      options.ceil_mode());
+}
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor lp_pool3d(
+    const Tensor& input,
+    double norm_type,
+    ExpandingArray<3> kernel_size,
+    ExpandingArray<3> stride,
+    bool ceil_mode) {
+  int kd = (*kernel_size)[0];
+  int kw = (*kernel_size)[1];
+  int kh = (*kernel_size)[2];
+  Tensor out = detail::avg_pool3d(
+      input.pow(norm_type),
+      kernel_size,
+      stride,
+      /*padding=*/0,
+      ceil_mode,
+      /*count_include_pad=*/true,
+      /*divisor_override=*/c10::nullopt);
+
+  return (torch::sign(out) * relu(torch::abs(out)))
+      .mul(kd * kw * kh)
+      .pow(1. / norm_type);
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.lp_pool3d
+/// about the exact behavior of this functional.
+///
+/// See the documentation for `torch::nn::functional::LPPool3dFuncOptions` class
+/// to learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::lp_pool3d(x, F::LPPool3dFuncOptions(3, {3, 3, 5}).stride(3));
+/// ```
+inline Tensor lp_pool3d(
+    const Tensor& input,
+    const LPPool3dFuncOptions& options) {
+  return detail::lp_pool3d(
+      input,
+      options.norm_type(),
+      options.kernel_size(),
+      options.stride(),
+      options.ceil_mode());
+}
+
+} // namespace functional
+} // namespace nn
+} // namespace torch

venv/lib/python3.10/site-packages/torch/include/torch/csrc/api/include/torch/nn/functional/upsampling.h

@@ -0,0 +1,289 @@
+#pragma once
+
+#include <c10/util/irange.h>
+#include <torch/nn/functional/pooling.h>
+#include <torch/nn/options/upsampling.h>
+
+#include <cmath>
+#include <utility>
+
+namespace torch {
+namespace nn {
+namespace functional {
+
+inline std::vector<int64_t> _interp_output_size(
+    int64_t dim,
+    std::tuple<
+        Tensor,
+        c10::optional<std::vector<int64_t>>,
+        c10::optional<std::vector<double>>,
+        c10::optional<bool>> closed_over_args) {
+  auto [input, size, scale_factor, recompute_scale_factor] = closed_over_args;
+  if (size == c10::nullopt && scale_factor == c10::nullopt) {
+    TORCH_CHECK(false, "either size or scale_factor should be defined");
+  }
+  if (size != c10::nullopt && scale_factor != c10::nullopt) {
+    TORCH_CHECK(false, "only one of size or scale_factor should be defined");
+  }
+  if (scale_factor != c10::nullopt) {
+    if (static_cast<int64_t>(scale_factor.value().size()) != dim) {
+      TORCH_CHECK(
+          false,
+          "scale_factor shape must match input shape. ",
+          "Input is ",
+          dim,
+          "D, scale_factor size is ",
+          torch::ArrayRef<double>(*scale_factor));
+    }
+  }
+  if (size != c10::nullopt) {
+    return *size;
+  }
+
+  TORCH_INTERNAL_ASSERT(scale_factor != c10::nullopt);
+  auto scale_factors = *scale_factor;
+
+  if (recompute_scale_factor == c10::nullopt) {
+    // only warn when the scales have floating values since
+    // the result for ints is the same with/without recompute_scale_factor
+    bool is_float_scale_factor = false;
+    for (double scale : scale_factors) {
+      is_float_scale_factor = floor(scale) != scale;
+      if (is_float_scale_factor) {
+        break;
+      }
+    }
+    if (is_float_scale_factor) {
+      TORCH_WARN(
+          "The default behavior for interpolate/upsample with float scale_factor changed "
+          "in 1.6.0 to align with other frameworks/libraries, and uses scale_factor directly, "
+          "instead of relying on the computed output size. "
+          "If you wish to keep the old behavior, please set recompute_scale_factor=True. "
+          "See the documentation of nn.Upsample for details. ");
+    }
+  }
+
+  std::vector<int64_t> ret;
+  for (const auto i : c10::irange(dim)) {
+    ret.emplace_back(static_cast<int64_t>(
+        floor(static_cast<double>(input.size(i + 2)) * scale_factors[i])));
+  }
+  return ret;
+}
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor interpolate(
+    const Tensor& input,
+    const c10::optional<std::vector<int64_t>>& size,
+    const c10::optional<std::vector<double>>& scale_factor,
+    InterpolateFuncOptions::mode_t mode,
+    c10::optional<bool> align_corners,
+    c10::optional<bool> recompute_scale_factor,
+    bool antialias) {
+  if (std::holds_alternative<enumtype::kNearest>(mode) ||
+      std::get_if<enumtype::kArea>(&mode)) {
+    if (align_corners != c10::nullopt) {
+      TORCH_CHECK(
+          false,
+          "align_corners option can only be set with the "
+          "interpolating modes: linear | bilinear | bicubic | trilinear");
+    }
+  } else {
+    if (align_corners == c10::nullopt) {
+      TORCH_WARN(
+          "Default upsampling behavior when mode=",
+          enumtype::get_enum_name(mode),
+          " is changed "
+          "to align_corners=False since 0.4.0. Please specify "
+          "align_corners=True if the old behavior is desired. "
+          "See the documentation of nn.Upsample for details.");
+      align_corners = false;
+    }
+  }
+
+  TORCH_CHECK(
+      input.dim() >= 3 && input.dim() <= 5,
+      "Input Error: Only 3D, 4D and 5D input Tensors supported "
+      "(got ",
+      input.dim(),
+      "D) for the modes: nearest | linear | bilinear | bicubic | trilinear "
+      "(got ",
+      enumtype::get_enum_name(mode),
+      ")");
+
+  auto scale_factor_len = input.dim() - 2;
+  std::vector<c10::optional<double>> scale_factor_list(
+      scale_factor_len, c10::nullopt);
+  if (scale_factor != c10::nullopt && !recompute_scale_factor.value_or(false)) {
+    auto _scale_factor_repeated = *scale_factor;
+    scale_factor_list = {};
+    for (const auto& elem : _scale_factor_repeated) {
+      scale_factor_list.emplace_back(elem);
+    }
+  }
+
+  if (antialias &&
+      !(input.dim() == 4 &&
+        (std::get_if<enumtype::kBilinear>(&mode) ||
+         std::get_if<enumtype::kBicubic>(&mode)))) {
+    TORCH_CHECK(
+        false,
+        "Anti-alias option is only supported for bilinear and bicubic modes");
+  }
+
+  auto closed_over_args =
+      std::make_tuple(input, size, scale_factor, recompute_scale_factor);
+  if (input.dim() == 3 && std::get_if<enumtype::kNearest>(&mode)) {
+    return torch::upsample_nearest1d(
+        input,
+        _interp_output_size(1, std::move(closed_over_args)),
+        scale_factor_list.at(0));
+  } else if (input.dim() == 4 && std::get_if<enumtype::kNearest>(&mode)) {
+    return torch::upsample_nearest2d(
+        input,
+        _interp_output_size(2, std::move(closed_over_args)),
+        scale_factor_list.at(0),
+        scale_factor_list.at(1));
+  } else if (input.dim() == 5 && std::get_if<enumtype::kNearest>(&mode)) {
+    return torch::upsample_nearest3d(
+        input,
+        _interp_output_size(3, std::move(closed_over_args)),
+        scale_factor_list.at(0),
+        scale_factor_list.at(1),
+        scale_factor_list.at(2));
+  } else if (input.dim() == 3 && std::get_if<enumtype::kNearestExact>(&mode)) {
+    return torch::_upsample_nearest_exact1d(
+        input,
+        _interp_output_size(1, std::move(closed_over_args)),
+        scale_factor_list.at(0));
+  } else if (input.dim() == 4 && std::get_if<enumtype::kNearestExact>(&mode)) {
+    return torch::_upsample_nearest_exact2d(
+        input,
+        _interp_output_size(2, std::move(closed_over_args)),
+        scale_factor_list.at(0),
+        scale_factor_list.at(1));
+  } else if (input.dim() == 5 && std::get_if<enumtype::kNearestExact>(&mode)) {
+    return torch::_upsample_nearest_exact3d(
+        input,
+        _interp_output_size(3, std::move(closed_over_args)),
+        scale_factor_list.at(0),
+        scale_factor_list.at(1),
+        scale_factor_list.at(2));
+  } else if (input.dim() == 3 && std::get_if<enumtype::kArea>(&mode)) {
+    return detail::adaptive_avg_pool1d(
+        input, _interp_output_size(1, std::move(closed_over_args)));
+  } else if (input.dim() == 4 && std::get_if<enumtype::kArea>(&mode)) {
+    return detail::adaptive_avg_pool2d(
+        input, _interp_output_size(2, std::move(closed_over_args)));
+  } else if (input.dim() == 5 && std::get_if<enumtype::kArea>(&mode)) {
+    return detail::adaptive_avg_pool3d(
+        input, _interp_output_size(3, std::move(closed_over_args)));
+  } else if (input.dim() == 3 && std::get_if<enumtype::kLinear>(&mode)) {
+    TORCH_CHECK(
+        align_corners != c10::nullopt, "align_corners should be specified.");
+    return torch::upsample_linear1d(
+        input,
+        _interp_output_size(1, std::move(closed_over_args)),
+        *align_corners,
+        scale_factor_list.at(0));
+  } else if (input.dim() == 3 && std::get_if<enumtype::kBilinear>(&mode)) {
+    TORCH_CHECK(false, "Got 3D input, but bilinear mode needs 4D input");
+  } else if (input.dim() == 3 && std::get_if<enumtype::kTrilinear>(&mode)) {
+    TORCH_CHECK(false, "Got 3D input, but trilinear mode needs 5D input");
+  } else if (input.dim() == 4 && std::get_if<enumtype::kLinear>(&mode)) {
+    TORCH_CHECK(false, "Got 4D input, but linear mode needs 3D input");
+  } else if (input.dim() == 4 && std::get_if<enumtype::kBilinear>(&mode)) {
+    TORCH_CHECK(
+        align_corners != c10::nullopt, "align_corners should be specified.");
+    if (antialias) {
+      return torch::_upsample_bilinear2d_aa(
+          input,
+          _interp_output_size(2, std::move(closed_over_args)),
+          *align_corners,
+          scale_factor_list.at(0),
+          scale_factor_list.at(1));
+    }
+    return torch::upsample_bilinear2d(
+        input,
+        _interp_output_size(2, std::move(closed_over_args)),
+        *align_corners,
+        scale_factor_list.at(0),
+        scale_factor_list.at(1));
+  } else if (input.dim() == 4 && std::get_if<enumtype::kTrilinear>(&mode)) {
+    TORCH_CHECK(false, "Got 4D input, but trilinear mode needs 5D input");
+  } else if (input.dim() == 5 && std::get_if<enumtype::kLinear>(&mode)) {
+    TORCH_CHECK(false, "Got 5D input, but linear mode needs 3D input");
+  } else if (input.dim() == 5 && std::get_if<enumtype::kBilinear>(&mode)) {
+    TORCH_CHECK(false, "Got 5D input, but bilinear mode needs 4D input");
+  } else if (input.dim() == 5 && std::get_if<enumtype::kTrilinear>(&mode)) {
+    TORCH_CHECK(
+        align_corners != c10::nullopt, "align_corners should be specified.");
+    return torch::upsample_trilinear3d(
+        input,
+        _interp_output_size(3, std::move(closed_over_args)),
+        *align_corners,
+        scale_factor_list.at(0),
+        scale_factor_list.at(1),
+        scale_factor_list.at(2));
+  } else if (input.dim() == 4 && std::get_if<enumtype::kBicubic>(&mode)) {
+    TORCH_CHECK(
+        align_corners != c10::nullopt, "align_corners should be specified.");
+    if (antialias) {
+      return torch::_upsample_bicubic2d_aa(
+          input,
+          _interp_output_size(2, std::move(closed_over_args)),
+          *align_corners,
+          scale_factor_list.at(0),
+          scale_factor_list.at(1));
+    }
+    return torch::upsample_bicubic2d(
+        input,
+        _interp_output_size(2, std::move(closed_over_args)),
+        *align_corners,
+        scale_factor_list.at(0),
+        scale_factor_list.at(1));
+  } else {
+    TORCH_CHECK(
+        false,
+        "Input Error: Only 3D, 4D and 5D input Tensors supported "
+        "(got ",
+        input.dim(),
+        "D) for the modes: nearest | linear | bilinear | bicubic | trilinear "
+        "(got ",
+        enumtype::get_enum_name(mode),
+        ")");
+  }
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.interpolate
+/// about the exact behavior of this functional.
+///
+/// See the documentation for `torch::nn::functional::InterpolateFuncOptions`
+/// class to learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::interpolate(input,
+/// F::InterpolateFuncOptions().size({4}).mode(torch::kNearest));
+/// ```
+inline Tensor interpolate(
+    const Tensor& input,
+    const InterpolateFuncOptions& options = {}) {
+  return detail::interpolate(
+      input,
+      options.size(),
+      options.scale_factor(),
+      options.mode(),
+      options.align_corners(),
+      options.recompute_scale_factor(),
+      options.antialias());
+}
+
+} // namespace functional
+} // namespace nn
+} // namespace torch

venv/lib/python3.10/site-packages/torch/include/torch/csrc/api/include/torch/nn/functional/vision.h

@@ -0,0 +1,124 @@
+#pragma once
+
+#include <torch/nn/options/vision.h>
+#include <torch/types.h>
+
+namespace torch {
+namespace nn {
+namespace functional {
+
+inline Tensor affine_grid(
+    const Tensor& theta,
+    const IntArrayRef& size,
+    bool align_corners = false) {
+  // enforce floating point dtype on theta
+  TORCH_CHECK(
+      theta.is_floating_point(),
+      "Expected theta to have floating point type, but got ",
+      theta.dtype());
+
+  // check that shapes and sizes match
+  if (size.size() == 4) {
+    TORCH_CHECK(
+        theta.dim() == 3 && theta.size(-2) == 2 && theta.size(-1) == 3,
+        "Expected a batch of 2D affine matrices of shape Nx2x3 for size ",
+        size,
+        ". Got ",
+        theta.sizes(),
+        ".");
+  } else if (size.size() == 5) {
+    TORCH_CHECK(
+        theta.dim() == 3 && theta.size(-2) == 3 && theta.size(-1) == 4,
+        "Expected a batch of 3D affine matrices of shape Nx3x4 for size ",
+        size,
+        ". Got ",
+        theta.sizes(),
+        ".");
+  } else {
+    TORCH_CHECK(
+        false,
+        "affine_grid only supports 4D and 5D sizes, ",
+        "for 2D and 3D affine transforms, respectively. ",
+        "Got size ",
+        size);
+  }
+
+  if (*std::min_element(size.begin(), size.end()) <= 0) {
+    TORCH_CHECK(false, "Expected non-zero, positive output size. Got ", size);
+  }
+
+  return torch::affine_grid_generator(theta, size, align_corners);
+}
+
+// ============================================================================
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+namespace detail {
+inline Tensor grid_sample(
+    const Tensor& input,
+    const Tensor& grid,
+    GridSampleFuncOptions::mode_t mode,
+    GridSampleFuncOptions::padding_mode_t padding_mode,
+    c10::optional<bool> align_corners) {
+  // NOLINTNEXTLINE(cppcoreguidelines-init-variables)
+  int64_t mode_enum, padding_mode_enum;
+
+  if (std::holds_alternative<enumtype::kBilinear>(mode)) {
+    mode_enum = 0;
+  } else if (std::holds_alternative<enumtype::kNearest>(mode)) {
+    mode_enum = 1;
+  } else { /// mode == 'bicubic'
+    mode_enum = 2;
+  }
+
+  if (std::holds_alternative<enumtype::kZeros>(padding_mode)) {
+    padding_mode_enum = 0;
+  } else if (std::holds_alternative<enumtype::kBorder>(padding_mode)) {
+    padding_mode_enum = 1;
+  } else { /// padding_mode == 'reflection'
+    padding_mode_enum = 2;
+  }
+
+  if (!align_corners.has_value()) {
+    TORCH_WARN(
+        "Default grid_sample and affine_grid behavior has changed ",
+        "to align_corners=False since 1.3.0. Please specify ",
+        "align_corners=True if the old behavior is desired. ",
+        "See the documentation of grid_sample for details.");
+    align_corners = false;
+  }
+
+  return torch::grid_sampler(
+      input, grid, mode_enum, padding_mode_enum, align_corners.value());
+}
+} // namespace detail
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/// See
+/// https://pytorch.org/docs/master/nn.functional.html#torch.nn.functional.grid_sample
+/// about the exact behavior of this functional.
+///
+/// See the documentation for `torch::nn::functional::GridSampleFuncOptions`
+/// class to learn what optional arguments are supported for this functional.
+///
+/// Example:
+/// ```
+/// namespace F = torch::nn::functional;
+/// F::grid_sample(input, grid,
+/// F::GridSampleFuncOptions().mode(torch::kBilinear).padding_mode(torch::kZeros).align_corners(true));
+/// ```
+inline Tensor grid_sample(
+    const Tensor& input,
+    const Tensor& grid,
+    const GridSampleFuncOptions& options = {}) {
+  return detail::grid_sample(
+      input,
+      grid,
+      options.mode(),
+      options.padding_mode(),
+      options.align_corners());
+}
+
+} // namespace functional
+} // namespace nn
+} // namespace torch

venv/lib/python3.10/site-packages/torch/include/torch/csrc/api/include/torch/nn/init.h

@@ -0,0 +1,124 @@
+#pragma once
+
+#include <torch/csrc/Export.h>
+#include <torch/enum.h>
+#include <torch/types.h>
+
+namespace torch {
+namespace nn {
+namespace init {
+
+using NonlinearityType = std::variant<
+    enumtype::kLinear,
+    enumtype::kConv1D,
+    enumtype::kConv2D,
+    enumtype::kConv3D,
+    enumtype::kConvTranspose1D,
+    enumtype::kConvTranspose2D,
+    enumtype::kConvTranspose3D,
+    enumtype::kSigmoid,
+    enumtype::kTanh,
+    enumtype::kReLU,
+    enumtype::kLeakyReLU>;
+
+using FanModeType = std::variant<enumtype::kFanIn, enumtype::kFanOut>;
+
+} // namespace init
+} // namespace nn
+
+namespace nn {
+namespace init {
+
+/// Return the recommended gain value for the given nonlinearity function.
+TORCH_API double calculate_gain(
+    NonlinearityType nonlinearity,
+    double param = 0.01);
+
+/// Fills the given `tensor` with the provided `value` in-place, and returns it.
+/// No gradient will be recorded for this operation.
+TORCH_API Tensor constant_(Tensor tensor, Scalar value);
+
+/// Fills the given `tensor` with the Dirac delta function in-place, and returns
+/// it. No gradient will be recorded for this operation.
+TORCH_API Tensor dirac_(Tensor tensor);
+
+/// Fills the given 2-dimensional `matrix` with an identity matrix.
+/// No gradient will be recorded for this operation.
+TORCH_API Tensor eye_(Tensor matrix);
+
+/// Fills the given 2-dimensional `matrix` with values drawn from a normal
+/// distribution parameterized by `mean` and `std`.
+/// No gradient will be recorded for this operation.
+TORCH_API Tensor normal_(Tensor tensor, double mean = 0, double std = 1);
+
+/// Fills the given `tensor` with ones.
+/// No gradient will be recorded for this operation.
+TORCH_API Tensor ones_(Tensor tensor);
+
+/// Fills the input `Tensor` with a (semi) orthogonal matrix, as described in
+/// "Exact solutions to the nonlinear dynamics of learning in deep linear neural
+/// networks" - Saxe, A. et al. (2013). The input tensor must have at least 2
+/// dimensions, and for tensors with more than 2 dimensions the trailing
+/// dimensions are flattened.
+/// No gradient will be recorded for this operation.
+TORCH_API Tensor orthogonal_(Tensor tensor, double gain = 1.0);
+
+/// Fills the 2D input `Tensor` as a sparse matrix, where the
+/// non-zero elements will be drawn from a centered normal distribution
+/// with the given standard deviation `std`, as described in "Deep learning via
+/// Hessian-free optimization" - Martens, J. (2010). The `sparsity` is a real
+/// value between 0 and 1 that controls the fraction of elements in each column
+/// to be set to zero.
+/// No gradient will be recorded for this operation.
+TORCH_API Tensor sparse_(Tensor tensor, double sparsity, double std = 0.01);
+
+/// Fills the given 2-dimensional `matrix` with values drawn from a uniform
+/// distribution parameterized by `low` and `high`.
+/// No gradient will be recorded for this operation.
+TORCH_API Tensor uniform_(Tensor tensor, double low = 0, double high = 1);
+
+/// Fills the input `Tensor` with values according to the method
+/// described in "Delving deep into rectifiers: Surpassing human-level
+/// performance on ImageNet classification" - He, K. et al. (2015), using a
+/// normal distribution. Also known as He initialization.
+/// No gradient will be recorded for this operation.
+TORCH_API Tensor kaiming_normal_(
+    Tensor tensor,
+    double a = 0,
+    FanModeType mode = torch::kFanIn,
+    NonlinearityType nonlinearity = torch::kLeakyReLU);
+
+/// Fills the input `Tensor` with values according to the method
+/// described in "Delving deep into rectifiers: Surpassing human-level
+/// performance on ImageNet classification" - He, K. et al. (2015), using a
+/// uniform distribution. Also known as He initialization.
+/// No gradient will be recorded for this operation.
+TORCH_API Tensor kaiming_uniform_(
+    Tensor tensor,
+    double a = 0,
+    FanModeType mode = torch::kFanIn,
+    NonlinearityType nonlinearity = torch::kLeakyReLU);
+
+/// Fills the input `Tensor` with values according to the method
+/// described in "Understanding the difficulty of training deep feedforward
+/// neural networks" - Glorot, X. & Bengio, Y. (2010). Values are scaled by the
+/// `gain` parameter. No gradient will be recorded for this operation.
+TORCH_API Tensor xavier_normal_(Tensor tensor, double gain = 1.0);
+
+/// Fills the input `Tensor` with values according to the method
+/// described in "Understanding the difficulty of training deep feedforward
+/// neural networks" - Glorot, X. & Bengio, Y. (2010), using a uniform
+/// distribution. Values are scaled by the `gain` parameter
+/// No gradient will be recorded for this operation.
+TORCH_API Tensor xavier_uniform_(Tensor tensor, double gain = 1.0);
+
+/// Fills the given `tensor` with zeros.
+/// No gradient will be recorded for this operation.
+TORCH_API Tensor zeros_(Tensor tensor);
+
+TORCH_API std::tuple<int64_t, int64_t> _calculate_fan_in_and_fan_out(
+    const Tensor& tensor);
+
+} // namespace init
+} // namespace nn
+} // namespace torch

venv/lib/python3.10/site-packages/torch/include/torch/csrc/api/include/torch/nn/module.h

@@ -0,0 +1,702 @@
+#pragma once
+
+#include <torch/nn/modules/container/any_module_holder.h>
+#include <torch/nn/modules/container/any_value.h>
+#include <torch/nn/pimpl.h>
+#include <torch/ordered_dict.h>
+#include <torch/serialize/archive.h>
+#include <torch/types.h>
+
+#include <ATen/ATen.h>
+
+#include <functional>
+#include <iosfwd>
+#include <map>
+#include <memory>
+#include <string>
+#include <type_traits>
+
+namespace torch {
+namespace nn {
+
+/// The base class for all modules in PyTorch.
+///
+/// \rst
+/// .. note::
+///   The design and implementation of this class is largely based on the Python
+///   API. You may want to consult the python documentation for
+///   :py:class:`pytorch:torch.nn.Module` for further clarification on certain
+///   methods or behavior.
+/// \endrst
+///
+/// A `Module` is an abstraction over the implementation of some function or
+/// algorithm, possibly associated with some persistent data. A `Module` may
+/// contain further `Module`s ("submodules"), each with their own
+/// implementation, persistent data and further submodules. `Module`s can thus
+/// be said to form a recursive tree structure. A `Module` is registered as a
+/// submodule to another `Module` by calling `register_module()`, typically from
+/// within a parent module's constructor.
+///
+/// A distinction is made between three kinds of persistent data that may be
+/// associated with a `Module`:
+///
+/// 1. *Parameters*: tensors that record gradients, typically weights updated
+///    during the backward step (e.g. the `weight` of a `Linear` module),
+/// 2. *Buffers*: tensors that do not record gradients, typically updated during
+///    the forward step, such as running statistics (e.g. `mean` and `variance`
+///    in the `BatchNorm` module),
+/// 3. Any additional state, not necessarily tensors, required for the
+///    implementation or configuration of a `Module`.
+///
+/// The first two kinds of state are special in that they may be registered
+/// with the `Module` system to allow convenient access and batch configuration.
+/// For example, registered parameters in any `Module` may be iterated over via
+/// the `parameters()` accessor. Further, changing the data type of a `Module`'s
+/// registered parameters can be done conveniently via `Module::to()`, e.g.
+/// `module->to(torch::kCUDA)` to move all parameters to GPU memory. Lastly,
+/// registered parameters and buffers are handled specially during a `clone()`
+/// operation, which performs a deepcopy of a cloneable `Module` hierarchy.
+///
+/// Parameters are registered with a `Module` via `register_parameter`. Buffers
+/// are registered separately via `register_buffer`. These methods are part of
+/// the public API of `Module` and are typically invoked from within a
+/// concrete `Module`s constructor.
+class TORCH_API Module : public std::enable_shared_from_this<Module> {
+ public:
+  using ModuleApplyFunction = std::function<void(Module&)>;
+  using ConstModuleApplyFunction = std::function<void(const Module&)>;
+  using NamedModuleApplyFunction =
+      std::function<void(const std::string&, Module&)>;
+  using ConstNamedModuleApplyFunction =
+      std::function<void(const std::string&, const Module&)>;
+  using ModulePointerApplyFunction =
+      std::function<void(const std::shared_ptr<Module>&)>;
+  using NamedModulePointerApplyFunction =
+      std::function<void(const std::string&, const std::shared_ptr<Module>&)>;
+
+  /// Tells the base `Module` about the name of the submodule.
+  explicit Module(std::string name);
+
+  /// Constructs the module without immediate knowledge of the submodule's name.
+  /// The name of the submodule is inferred via RTTI (if possible) the first
+  /// time `.name()` is invoked.
+  Module();
+  Module(const Module&) = default;
+  Module& operator=(const Module&) = default;
+  Module(Module&&) noexcept = default;
+  Module& operator=(Module&&) noexcept = default;
+
+  virtual ~Module() = default;
+
+  /// Returns the name of the `Module`.
+  ///
+  /// A `Module` has an associated `name`, which is a string representation of
+  /// the kind of concrete `Module` it represents, such as `"Linear"` for the
+  /// `Linear` module. Under most circumstances, this name is automatically
+  /// inferred via runtime type information (RTTI). In the unusual circumstance
+  /// that you have this feature disabled, you may want to manually name your
+  /// `Module`s by passing the string name to the `Module` base class'
+  /// constructor.
+  const std::string& name() const noexcept;
+
+  /// Performs a recursive deep copy of the module and all its registered
+  /// parameters, buffers and submodules.
+  ///
+  /// Optionally, this method sets the current device
+  /// to the one supplied before cloning. If no device is given, each
+  /// parameter and buffer will be moved to the device of its source.
+  ///
+  /// \rst
+  /// .. attention::
+  ///   Attempting to call the `clone()` method inherited from the base `Module`
+  ///   class (the one documented here) will fail. To inherit an actual
+  ///   implementation of `clone()`, you must subclass `Cloneable`. `Cloneable`
+  ///   is templatized on the concrete module type, and can thus properly copy a
+  ///   `Module`. This method is provided on the base class' API solely for an
+  ///   easier-to-use polymorphic interface.
+  /// \endrst
+  virtual std::shared_ptr<Module> clone(
+      const optional<Device>& device = nullopt) const;
+
+  /// Applies the `function` to the `Module` and recursively to every submodule.
+  /// The function must accept a `Module&`.
+  ///
+  /// \rst
+  /// .. code-block:: cpp
+  ///   MyModule module;
+  ///   module->apply([](nn::Module& module) {
+  ///     std::cout << module.name() << std::endl;
+  ///   });
+  /// \endrst
+  void apply(const ModuleApplyFunction& function);
+
+  /// Applies the `function` to the `Module` and recursively to every submodule.
+  /// The function must accept a `const Module&`.
+  ///
+  /// \rst
+  /// .. code-block:: cpp
+  ///   MyModule module;
+  ///   module->apply([](const nn::Module& module) {
+  ///     std::cout << module.name() << std::endl;
+  ///   });
+  /// \endrst
+  void apply(const ConstModuleApplyFunction& function) const;
+
+  /// Applies the `function` to the `Module` and recursively to every submodule.
+  /// The function must accept a `const std::string&` for the key of the module,
+  /// and a `Module&`. The key of the module itself is the empty string. If
+  /// `name_prefix` is given, it is prepended to every key as
+  /// `<name_prefix>.<key>` (and just `name_prefix` for the module itself).
+  ///
+  /// \rst
+  /// .. code-block:: cpp
+  ///   MyModule module;
+  ///   module->apply([](const std::string& key, nn::Module& module) {
+  ///     std::cout << key << ": " << module.name() << std::endl;
+  ///   });
+  /// \endrst
+  void apply(
+      const NamedModuleApplyFunction& function,
+      const std::string& name_prefix = std::string());
+
+  /// Applies the `function` to the `Module` and recursively to every submodule.
+  /// The function must accept a `const std::string&` for the key of the module,
+  /// and a `const Module&`. The key of the module itself is the empty string.
+  /// If `name_prefix` is given, it is prepended to every key as
+  /// `<name_prefix>.<key>` (and just `name_prefix` for the module itself).
+  ///
+  /// \rst
+  /// .. code-block:: cpp
+  ///   MyModule module;
+  ///   module->apply([](const std::string& key, const nn::Module& module) {
+  ///     std::cout << key << ": " << module.name() << std::endl;
+  ///   });
+  /// \endrst
+  void apply(
+      const ConstNamedModuleApplyFunction& function,
+      const std::string& name_prefix = std::string()) const;
+
+  /// Applies the `function` to the `Module` and recursively to every submodule.
+  /// The function must accept a `const std::shared_ptr<Module>&`.
+  ///
+  /// \rst
+  /// .. code-block:: cpp
+  ///   MyModule module;
+  ///   module->apply([](const std::shared_ptr<nn::Module>& module) {
+  ///     std::cout << module->name() << std::endl;
+  ///   });
+  /// \endrst
+  void apply(const ModulePointerApplyFunction& function) const;
+
+  /// Applies the `function` to the `Module` and recursively to every submodule.
+  /// The function must accept a `const std::string&` for the key of the module,
+  /// and a `const std::shared_ptr<Module>&`. The key of the module itself is
+  /// the empty string. If `name_prefix` is given, it is prepended to every key
+  /// as
+  /// `<name_prefix>.<key>` (and just `name_prefix` for the module itself).
+  ///
+  /// \rst
+  /// .. code-block:: cpp
+  ///   MyModule module;
+  ///   module->apply([](const std::string& key,
+  ///                    const std::shared_ptr<nn::Module>& module) {
+  ///     std::cout << key << ": " << module->name() << std::endl;
+  ///   });
+  /// \endrst
+  void apply(
+      const NamedModulePointerApplyFunction& function,
+      const std::string& name_prefix = std::string()) const;
+
+  /// Returns the parameters of this `Module` and if `recurse` is true, also
+  /// recursively of every submodule.
+  std::vector<Tensor> parameters(bool recurse = true) const;
+
+  /// Returns an `OrderedDict` with the parameters of this `Module` along with
+  /// their keys, and if `recurse` is true also recursively of every submodule.
+  OrderedDict<std::string, Tensor> named_parameters(bool recurse = true) const;
+
+  /// Returns the buffers of this `Module` and if `recurse` is true, also
+  /// recursively of every submodule.
+  std::vector<Tensor> buffers(bool recurse = true) const;
+
+  /// Returns an `OrderedDict` with the buffers of this `Module` along with
+  /// their keys, and if `recurse` is true also recursively of every submodule.
+  OrderedDict<std::string, Tensor> named_buffers(bool recurse = true) const;
+
+  /// Returns the submodules of this `Module` (the entire submodule hierarchy)
+  /// and if `include_self` is true, also inserts a `shared_ptr` to this module
+  /// in the first position.
+  ///
+  /// \rst
+  /// .. warning::
+  ///   Only pass `include_self` as `true` if this `Module` is stored in a
+  ///   `shared_ptr`! Otherwise an exception will be thrown. You may still call
+  ///   this method with `include_self` set to false if your `Module` is not
+  ///   stored in a `shared_ptr`.
+  /// \endrst
+  std::vector<std::shared_ptr<Module>> modules(bool include_self = true) const;
+
+  /// Returns an `OrderedDict` of the submodules of this `Module` (the entire
+  /// submodule hierarchy) and their keys, and if `include_self` is true, also
+  /// inserts a `shared_ptr` to this module in the first position. If
+  /// `name_prefix` is given, it is prepended to every key as
+  /// `<name_prefix>.<key>` (and just `name_prefix` for the module itself).
+  ///
+  /// \rst
+  /// .. warning::
+  ///   Only pass `include_self` as `true` if this `Module` is stored in a
+  ///   `shared_ptr`! Otherwise an exception will be thrown. You may still call
+  ///   this method with `include_self` set to false if your `Module` is not
+  ///   stored in a `shared_ptr`.
+  /// \endrst
+  OrderedDict<std::string, std::shared_ptr<Module>> named_modules(
+      const std::string& name_prefix = std::string(),
+      bool include_self = true) const;
+
+  /// Returns the direct submodules of this `Module`.
+  std::vector<std::shared_ptr<Module>> children() const;
+
+  /// Returns an `OrderedDict` of the direct submodules of this `Module` and
+  /// their keys.
+  OrderedDict<std::string, std::shared_ptr<Module>> named_children() const;
+
+  /// Enables "training" mode.
+  virtual void train(bool on = true);
+
+  /// Calls train(false) to enable "eval" mode.
+  /// Do not override this method, override `train()` instead.
+  void eval();
+
+  /// True if the module is in training mode.
+  ///
+  /// Every `Module` has a boolean associated with it that determines whether
+  /// the `Module` is currently in *training* mode (set via `.train()`) or in
+  /// *evaluation* (inference) mode (set via `.eval()`). This property is
+  /// exposed via `is_training()`, and may be used by the implementation of a
+  /// concrete module to modify its runtime behavior. See the `BatchNorm` or
+  /// `Dropout` modules for examples of `Module`s that use different code paths
+  /// depending on this property.
+  virtual bool is_training() const noexcept;
+
+  /// Recursively casts all parameters to the given `dtype` and `device`.
+  ///
+  /// If `non_blocking` is true and the source is in pinned memory and
+  /// destination is on the GPU or vice versa, the copy is performed
+  /// asynchronously with respect to the host. Otherwise, the argument has no
+  /// effect.
+  virtual void to(
+      torch::Device device,
+      torch::Dtype dtype,
+      bool non_blocking = false);
+
+  /// Recursively casts all parameters to the given dtype.
+  ///
+  /// If `non_blocking` is true and the source is in pinned memory and
+  /// destination is on the GPU or vice versa, the copy is performed
+  /// asynchronously with respect to the host. Otherwise, the argument has no
+  /// effect.
+  virtual void to(torch::Dtype dtype, bool non_blocking = false);
+
+  /// Recursively moves all parameters to the given device.
+  ///
+  /// If `non_blocking` is true and the source is in pinned memory and
+  /// destination is on the GPU or vice versa, the copy is performed
+  /// asynchronously with respect to the host. Otherwise, the argument has no
+  /// effect.
+  virtual void to(torch::Device device, bool non_blocking = false);
+
+  /// Recursively zeros out the `grad` value of each registered parameter.
+  virtual void zero_grad(bool set_to_none = true);
+
+  /// Attempts to cast this `Module` to the given `ModuleType`.
+  ///
+  /// This method is useful when calling `apply()`.
+  /// \rst
+  /// .. code-block:: cpp
+  ///
+  ///   void initialize_weights(nn::Module& module) {
+  ///     torch::NoGradGuard no_grad;
+  ///     if (auto* linear = module.as<nn::Linear>()) {
+  ///       linear->weight.normal_(0.0, 0.02);
+  ///     }
+  ///   }
+  ///
+  ///   MyModule module;
+  ///   module->apply(initialize_weights);
+  /// \endrst
+  template <typename ModuleType>
+  typename ModuleType::ContainedType* as() noexcept;
+
+  /// Attempts to cast this `Module` to the given `ModuleType`.
+  ///
+  /// This method is useful when calling `apply()`.
+  /// \rst
+  /// .. code-block:: cpp
+  ///   void initialize_weights(nn::Module& module) {
+  ///     torch::NoGradGuard no_grad;
+  ///     if (auto* linear = module.as<nn::Linear>()) {
+  ///       linear->weight.normal_(0.0, 0.02);
+  ///     }
+  ///   }
+  ///
+  ///   MyModule module;
+  ///   module->apply(initialize_weights);
+  /// \endrst
+  template <typename ModuleType>
+  const typename ModuleType::ContainedType* as() const noexcept;
+
+  /// Attempts to cast this `Module` to the given `ModuleType`.
+  ///
+  /// This method is useful when calling `apply()`.
+  /// \rst
+  /// .. code-block:: cpp
+  ///
+  ///   void initialize_weights(nn::Module& module) {
+  ///     torch::NoGradGuard no_grad;
+  ///     if (auto* linear = module.as<nn::Linear>()) {
+  ///       linear->weight.normal_(0.0, 0.02);
+  ///     }
+  ///   }
+  ///
+  ///   MyModule module;
+  ///   module.apply(initialize_weights);
+  /// \endrst
+  template <
+      typename ModuleType,
+      typename = torch::detail::disable_if_module_holder_t<ModuleType>>
+  ModuleType* as() noexcept;
+
+  /// Attempts to cast this `Module` to the given `ModuleType`.
+  ///
+  /// This method is useful when calling `apply()`.
+  /// \rst
+  /// .. code-block:: cpp
+  ///
+  ///   void initialize_weights(nn::Module& module) {
+  ///     torch::NoGradGuard no_grad;
+  ///     if (auto* linear = module.as<nn::Linear>()) {
+  ///       linear->weight.normal_(0.0, 0.02);
+  ///     }
+  ///   }
+  ///
+  ///   MyModule module;
+  ///   module.apply(initialize_weights);
+  /// \endrst
+  template <
+      typename ModuleType,
+      typename = torch::detail::disable_if_module_holder_t<ModuleType>>
+  const ModuleType* as() const noexcept;
+
+  /// Serializes the `Module` into the given `OutputArchive`.
+  ///
+  /// If the `Module` contains unserializable submodules (e.g.
+  /// `nn::Functional`), those submodules are skipped when serializing.
+  virtual void save(serialize::OutputArchive& archive) const;
+
+  /// Deserializes the `Module` from the given `InputArchive`.
+  ///
+  /// If the `Module` contains unserializable submodules (e.g.
+  /// `nn::Functional`), we don't check the existence of those submodules in the
+  /// `InputArchive` when deserializing.
+  virtual void load(serialize::InputArchive& archive);
+
+  /// Streams a pretty representation of the `Module` into the given `stream`.
+  /// By default, this representation will be the name of the module (taken from
+  /// `name()`), followed by a recursive pretty print of all of the `Module`'s
+  /// submodules.
+  ///
+  /// Override this method to change the pretty print. The input
+  /// `stream` should be returned from the method, to allow easy chaining.
+  virtual void pretty_print(std::ostream& stream) const;
+
+  /// Returns whether the `Module` is serializable.
+  virtual bool is_serializable() const;
+
+  /// Registers a parameter with this `Module`.
+  ///
+  /// A parameter should be any gradient-recording tensor used in the
+  /// implementation of your `Module`. Registering it makes it available to
+  /// methods such as `parameters()`, `clone()` or `to().`
+  ///
+  /// Note that registering an undefined Tensor (e.g.
+  /// `module.register_parameter("param", Tensor())`) is allowed, and is
+  /// equivalent to `module.register_parameter("param", None)` in Python API.
+  ///
+  /// \rst
+  /// .. code-block:: cpp
+  ///
+  ///   MyModule::MyModule() {
+  ///     weight_ = register_parameter("weight", torch::randn({A, B}));
+  ///   }
+  /// \endrst
+  Tensor& register_parameter(
+      std::string name,
+      Tensor tensor,
+      bool requires_grad = true);
+
+  /// Registers a buffer with this `Module`.
+  ///
+  /// A buffer is intended to be state in your module that does not record
+  /// gradients, such as running statistics. Registering it makes it available
+  /// to methods such as `buffers()`, `clone()` or `to().
+  ///
+  /// \rst
+  /// .. code-block:: cpp
+  ///
+  ///   MyModule::MyModule() {
+  ///     mean_ = register_buffer("mean", torch::empty({num_features_}));
+  ///   }
+  /// \endrst
+  Tensor& register_buffer(std::string name, Tensor tensor);
+
+  /// Registers a submodule with this `Module`.
+  ///
+  /// Registering a module makes it available to methods such as `modules()`,
+  /// `clone()` or `to()`.
+  ///
+  /// \rst
+  /// .. code-block:: cpp
+  ///
+  ///   MyModule::MyModule() {
+  ///     submodule_ = register_module("linear", torch::nn::Linear(3, 4));
+  ///   }
+  /// \endrst
+  template <typename ModuleType>
+  std::shared_ptr<ModuleType> register_module(
+      std::string name,
+      std::shared_ptr<ModuleType> module);
+
+  /// Registers a submodule with this `Module`.
+  ///
+  /// This method deals with `ModuleHolder`s.
+  ///
+  /// Registering a module makes it available to methods such as `modules()`,
+  /// `clone()` or `to()`.
+  ///
+  /// \rst
+  /// .. code-block:: cpp
+  ///
+  ///   MyModule::MyModule() {
+  ///     submodule_ = register_module("linear", torch::nn::Linear(3, 4));
+  ///   }
+  /// \endrst
+  template <typename ModuleType>
+  std::shared_ptr<ModuleType> register_module(
+      std::string name,
+      ModuleHolder<ModuleType> module_holder);
+
+  /// Replaces a registered submodule with this `Module`.
+  ///
+  /// This takes care of the registration, if you used submodule members, you
+  /// should
+  //  assign the submodule as well, i.e. use as
+  ///     module->submodule_ = module->replace_module("linear",
+  ///     torch::nn::Linear(3, 4));
+  /// It only works when a module of the name is already registered.
+  ///
+  /// This is useful for replacing a module after initialization, e.g.
+  /// for finetuning.
+  template <typename ModuleType>
+  std::shared_ptr<ModuleType> replace_module(
+      const std::string& name,
+      std::shared_ptr<ModuleType> module);
+
+  /// Replaces a registered submodule with this `Module`.
+  /// This method deals with `ModuleHolder`s.
+  ///
+  /// This takes care of the registration, if you used submodule members, you
+  /// should
+  //  assign the submodule as well, i.e. use as
+  ///     module->submodule_ = module->replace_module("linear", linear_holder);
+  /// It only works when a module of the name is already registered.
+  ///
+  /// This is useful for replacing a module after initialization, e.g.
+  /// for finetuning.
+  template <typename ModuleType>
+  std::shared_ptr<ModuleType> replace_module(
+      const std::string& name,
+      ModuleHolder<ModuleType> module_holder);
+
+  /// Unregisters a submodule from this `Module`. If there is no such module
+  /// with `name` an exception is thrown.
+  void unregister_module(const std::string& name);
+
+ protected:
+  /// The following three functions allow a module with default arguments in its
+  /// forward method to be used in a Sequential module.
+  /// You should NEVER override these functions manually. Instead, you should
+  /// use the `FORWARD_HAS_DEFAULT_ARGS` macro.
+  virtual bool _forward_has_default_args() {
+    return false;
+  }
+
+  virtual unsigned int _forward_num_required_args() {
+    TORCH_CHECK(
+        false,
+        "torch::nn::Module subclass that has default arguments in `forward` method ",
+        "must override `_forward_num_required_args` method. Please use ",
+        "`FORWARD_HAS_DEFAULT_ARGS` macro to do so.");
+  }
+
+  virtual std::vector<AnyValue> _forward_populate_default_args(
+      std::vector<AnyValue>&& arguments) {
+    TORCH_CHECK(
+        false,
+        "torch::nn::Module subclass that has default arguments in `forward` method ",
+        "must override `_forward_populate_default_args` method. Please use ",
+        "`FORWARD_HAS_DEFAULT_ARGS` macro to do so.");
+  }
+
+  /// The registered parameters of this `Module`.
+  /// Inorder to access parameters_ in ParameterDict and ParameterList
+  // NOLINTNEXTLINE(cppcoreguidelines-non-private-member-variables-in-classes)
+  OrderedDict<std::string, Tensor> parameters_;
+
+ private:
+  // Friend classes.
+
+  template <typename Derived>
+  friend class Cloneable;
+
+  template <typename ModuleType, typename... ArgumentTypes>
+  friend struct AnyModuleHolder;
+
+  /// Pretty prints the given `Module` into the `ostream`.
+  TORCH_API friend std::ostream& operator<<(
+      std::ostream& stream,
+      const nn::Module& module);
+
+  // data parallel using this method to configure gradient edges during the
+  // replicate step.
+  template <typename ModuleType>
+  friend void replicate_grad_edges(
+      const std::shared_ptr<Module>& module,
+      const std::vector<std::shared_ptr<ModuleType>>& replicas,
+      const std::vector<Device>& devices);
+
+  // Private methods.
+
+  /// Used in the implementation of `Cloneable`.
+  virtual void clone_(Module& other, const optional<Device>& device);
+
+  /// The implementation of the various `to()` methods.
+  template <typename... Ts>
+  void to_impl(Ts&&... ts);
+
+  /// Implements pretty printing the module hierarchy.
+  void pretty_print_recursive(
+      std::ostream& stream,
+      const std::string& indentation) const;
+
+  /// Applies the `function` to every submodule recursively, starting at this
+  /// `Module`'s children (thus not including the module itself).
+  void apply_to_submodules(
+      const NamedModulePointerApplyFunction& function,
+      const std::string& name_prefix = std::string()) const;
+
+  /// Returns a shared_ptr to `this` in a safe (checked) way.
+  std::shared_ptr<Module> shared_from_this_checked() const;
+
+  /// The registered buffers of this `Module`.
+  OrderedDict<std::string, Tensor> buffers_;
+
+  /// The registered (direct) submodules of this `Module`.
+  OrderedDict<std::string, std::shared_ptr<Module>> children_;
+
+  /// The module's name (e.g. "LSTM").
+  mutable optional<std::string> name_;
+
+  /// Whether the module is in training mode.
+  bool is_training_{true};
+};
+
+/// Serialize a `Module` pointer into an `OutputArchive`.
+TORCH_API serialize::OutputArchive& operator<<(
+    serialize::OutputArchive& archive,
+    const std::shared_ptr<nn::Module>& module);
+
+/// Deserializes a `Module` from an `InputArchive`.
+TORCH_API serialize::InputArchive& operator>>(
+    serialize::InputArchive& archive,
+    const std::shared_ptr<nn::Module>& module);
+
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ nn::Module ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+template <typename ModuleType>
+typename ModuleType::ContainedType* Module::as() noexcept {
+  // Use the contained type of the `ModuleHolder`, e.g. `LinearImpl` for
+  // `Linear`, since `LinearImpl` inherits `nn::Module`.
+  return as<typename ModuleType::ContainedType>();
+}
+
+template <typename ModuleType>
+const typename ModuleType::ContainedType* Module::as() const noexcept {
+  // Use the contained type of the `ModuleHolder`, e.g. `LinearImpl` for
+  // `Linear`, since `LinearImpl` inherits `nn::Module`.
+  return as<typename ModuleType::ContainedType>();
+}
+
+template <typename ModuleType, typename>
+ModuleType* Module::as() noexcept {
+  return dynamic_cast<ModuleType*>(this);
+}
+
+template <typename ModuleType, typename>
+const ModuleType* Module::as() const noexcept {
+  return dynamic_cast<const ModuleType*>(this);
+}
+
+template <typename ModuleType>
+std::shared_ptr<ModuleType> Module::register_module(
+    std::string name,
+    std::shared_ptr<ModuleType> module) {
+  TORCH_CHECK(!name.empty(), "Submodule name must not be empty");
+  TORCH_CHECK(
+      name.find('.') == std::string::npos,
+      "Submodule name must not contain a dot (got '",
+      name,
+      "')");
+  auto& base_module = children_.insert(std::move(name), std::move(module));
+  return std::dynamic_pointer_cast<ModuleType>(base_module);
+}
+
+template <typename ModuleType>
+std::shared_ptr<ModuleType> Module::register_module(
+    std::string name,
+    ModuleHolder<ModuleType> module_holder) {
+  return register_module(std::move(name), module_holder.ptr());
+}
+
+template <typename ModuleType>
+std::shared_ptr<ModuleType> Module::replace_module(
+    const std::string& name,
+    std::shared_ptr<ModuleType> module) {
+  auto& base_module = (children_[name] = std::move(module));
+  return std::dynamic_pointer_cast<ModuleType>(base_module);
+}
+
+template <typename ModuleType>
+std::shared_ptr<ModuleType> Module::replace_module(
+    const std::string& name,
+    ModuleHolder<ModuleType> module_holder) {
+  return replace_module(name, module_holder.ptr());
+}
+
+template <typename... Ts>
+void Module::to_impl(Ts&&... ts) {
+  // First call `to()` on every child module.
+  for (auto& child : children_) {
+    child.value()->to(ts...);
+  }
+  // Then move every parameter to the new dtype/device.
+  for (auto& parameter : named_parameters(/*recurse=*/false)) {
+    parameter->set_data(autograd::Variable(*parameter).to(ts...));
+  }
+  // Then move every buffer to the new dtype/device.
+  for (auto& buffer : named_buffers(/*recurse=*/false)) {
+    buffer->set_data(autograd::Variable(*buffer).to(ts...));
+  }
+}
+
+} // namespace nn
+} // namespace torch

venv/lib/python3.10/site-packages/torch/include/torch/csrc/api/include/torch/nn/modules.h

@@ -0,0 +1,36 @@
+#pragma once
+
+// Common
+#include <torch/nn/modules/common.h>
+
+// Containers
+#include <torch/nn/modules/container/any.h>
+#include <torch/nn/modules/container/functional.h>
+#include <torch/nn/modules/container/moduledict.h>
+#include <torch/nn/modules/container/modulelist.h>
+#include <torch/nn/modules/container/named_any.h>
+#include <torch/nn/modules/container/parameterdict.h>
+#include <torch/nn/modules/container/parameterlist.h>
+#include <torch/nn/modules/container/sequential.h>
+
+// Layers
+#include <torch/nn/modules/activation.h>
+#include <torch/nn/modules/adaptive.h>
+#include <torch/nn/modules/batchnorm.h>
+#include <torch/nn/modules/conv.h>
+#include <torch/nn/modules/distance.h>
+#include <torch/nn/modules/dropout.h>
+#include <torch/nn/modules/embedding.h>
+#include <torch/nn/modules/fold.h>
+#include <torch/nn/modules/instancenorm.h>
+#include <torch/nn/modules/linear.h>
+#include <torch/nn/modules/loss.h>
+#include <torch/nn/modules/normalization.h>
+#include <torch/nn/modules/padding.h>
+#include <torch/nn/modules/pixelshuffle.h>
+#include <torch/nn/modules/pooling.h>
+#include <torch/nn/modules/rnn.h>
+#include <torch/nn/modules/transformer.h>
+#include <torch/nn/modules/transformercoder.h>
+#include <torch/nn/modules/transformerlayer.h>
+#include <torch/nn/modules/upsampling.h>

venv/lib/python3.10/site-packages/torch/include/torch/csrc/api/include/torch/nn/modules/_functions.h

@@ -0,0 +1,26 @@
+#pragma once
+
+#include <torch/csrc/autograd/custom_function.h>
+#include <torch/csrc/autograd/variable.h>
+#include <torch/nn/options/normalization.h>
+#include <torch/types.h>
+
+namespace torch {
+namespace nn {
+namespace functions {
+
+class CrossMapLRN2d : public torch::autograd::Function<CrossMapLRN2d> {
+ public:
+  static torch::autograd::Variable forward(
+      torch::autograd::AutogradContext* ctx,
+      const torch::autograd::Variable& input,
+      const CrossMapLRN2dOptions& options);
+
+  static torch::autograd::variable_list backward(
+      torch::autograd::AutogradContext* ctx,
+      torch::autograd::variable_list grad_output);
+};
+
+} // namespace functions
+} // namespace nn
+} // namespace torch

venv/lib/python3.10/site-packages/torch/include/torch/csrc/api/include/torch/nn/modules/activation.h

@@ -0,0 +1,875 @@
+#pragma once
+
+#include <torch/nn/cloneable.h>
+#include <torch/nn/functional/activation.h>
+#include <torch/nn/modules/common.h>
+#include <torch/nn/modules/linear.h>
+#include <torch/nn/options/activation.h>
+
+#include <torch/csrc/Export.h>
+
+namespace torch {
+namespace nn {
+
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ELU ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+/// Applies elu over a given input.
+/// See https://pytorch.org/docs/master/nn.html#torch.nn.ELU to learn
+/// about the exact behavior of this module.
+///
+/// See the documentation for `torch::nn::ELUOptions` class to learn what
+/// constructor arguments are supported for this module.
+///
+/// Example:
+/// ```
+/// ELU model(ELUOptions().alpha(42.42).inplace(true));
+/// ```
+class TORCH_API ELUImpl : public torch::nn::Cloneable<ELUImpl> {
+ public:
+  explicit ELUImpl(const ELUOptions& options_ = {});
+
+  Tensor forward(Tensor input);
+
+  void reset() override;
+
+  /// Pretty prints the `ELU` module into the given `stream`.
+  void pretty_print(std::ostream& stream) const override;
+
+  /// The options with which this `Module` was constructed.
+  ELUOptions options;
+};
+
+/// A `ModuleHolder` subclass for `ELUImpl`.
+/// See the documentation for `ELUImpl` class to learn what methods it
+/// provides, and examples of how to use `ELU` with `torch::nn::ELUOptions`.
+/// See the documentation for `ModuleHolder` to learn about PyTorch's
+/// module storage semantics.
+TORCH_MODULE(ELU);
+
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ SELU ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+/// Applies the selu function element-wise.
+/// See https://pytorch.org/docs/master/nn.html#torch.nn.SELU to learn
+/// about the exact behavior of this module.
+///
+/// See the documentation for `torch::nn::SELUOptions` class to learn what
+/// constructor arguments are supported for this module.
+///
+/// Example:
+/// ```
+/// SELU model(SELUOptions().inplace(true));
+/// ```
+class TORCH_API SELUImpl : public torch::nn::Cloneable<SELUImpl> {
+ public:
+  explicit SELUImpl(const SELUOptions& options_ = {});
+
+  Tensor forward(Tensor input);
+
+  void reset() override;
+
+  /// Pretty prints the `SELU` module into the given `stream`.
+  void pretty_print(std::ostream& stream) const override;
+
+  /// The options with which this `Module` was constructed.
+  SELUOptions options;
+};
+
+/// A `ModuleHolder` subclass for `SELUImpl`.
+/// See the documentation for `SELUImpl` class to learn what methods it
+/// provides, and examples of how to use `SELU` with `torch::nn::SELUOptions`.
+/// See the documentation for `ModuleHolder` to learn about PyTorch's
+/// module storage semantics.
+TORCH_MODULE(SELU);
+
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Hardshrink ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+/// Applies the hard shrinkage function element-wise.
+/// See https://pytorch.org/docs/master/nn.html#torch.nn.Hardshrink to learn
+/// about the exact behavior of this module.
+///
+/// See the documentation for `torch::nn::HardshrinkOptions` class to learn what
+/// constructor arguments are supported for this module.
+///
+/// Example:
+/// ```
+/// Hardshrink model(HardshrinkOptions().lambda(42.42));
+/// ```
+class TORCH_API HardshrinkImpl : public torch::nn::Cloneable<HardshrinkImpl> {
+ public:
+  explicit HardshrinkImpl(const HardshrinkOptions& options_ = {});
+
+  Tensor forward(const Tensor& input);
+
+  void reset() override;
+
+  /// Pretty prints the `Hardshrink` module into the given `stream`.
+  void pretty_print(std::ostream& stream) const override;
+
+  /// The options with which this `Module` was constructed.
+  HardshrinkOptions options;
+};
+
+/// A `ModuleHolder` subclass for `HardshrinkImpl`.
+/// See the documentation for `HardshrinkImpl` class to learn what methods it
+/// provides, and examples of how to use `Hardshrink` with
+/// `torch::nn::HardshrinkOptions`. See the documentation for `ModuleHolder` to
+/// learn about PyTorch's module storage semantics.
+TORCH_MODULE(Hardshrink);
+
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Hardtanh ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+/// Applies the HardTanh function element-wise.
+/// See https://pytorch.org/docs/master/nn.html#torch.nn.Hardtanh to learn
+/// about the exact behavior of this module.
+///
+/// See the documentation for `torch::nn::HardtanhOptions` class to learn what
+/// constructor arguments are supported for this module.
+///
+/// Example:
+/// ```
+/// Hardtanh
+/// model(HardtanhOptions().min_val(-42.42).max_val(0.42).inplace(true));
+/// ```
+class TORCH_API HardtanhImpl : public torch::nn::Cloneable<HardtanhImpl> {
+ public:
+  explicit HardtanhImpl(const HardtanhOptions& options_ = {});
+
+  Tensor forward(Tensor input);
+
+  void reset() override;
+
+  /// Pretty prints the `Hardtanh` module into the given `stream`.
+  void pretty_print(std::ostream& stream) const override;
+
+  /// The options with which this `Module` was constructed.
+  HardtanhOptions options;
+};
+
+/// A `ModuleHolder` subclass for `HardtanhImpl`.
+/// See the documentation for `HardtanhImpl` class to learn what methods it
+/// provides, and examples of how to use `Hardtanh` with
+/// `torch::nn::HardtanhOptions`. See the documentation for `ModuleHolder` to
+/// learn about PyTorch's module storage semantics.
+TORCH_MODULE(Hardtanh);
+
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ LeakyReLU ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+/// Applies the LeakyReLU function element-wise.
+/// See https://pytorch.org/docs/master/nn.html#torch.nn.LeakyReLU to learn
+/// about the exact behavior of this module.
+///
+/// See the documentation for `torch::nn::LeakyReLUOptions` class to learn what
+/// constructor arguments are supported for this module.
+///
+/// Example:
+/// ```
+/// LeakyReLU model(LeakyReLUOptions().negative_slope(0.42).inplace(true));
+/// ```
+class TORCH_API LeakyReLUImpl : public torch::nn::Cloneable<LeakyReLUImpl> {
+ public:
+  explicit LeakyReLUImpl(const LeakyReLUOptions& options_ = {});
+
+  Tensor forward(Tensor input);
+
+  void reset() override;
+
+  /// Pretty prints the `LeakyReLU` module into the given `stream`.
+  void pretty_print(std::ostream& stream) const override;
+
+  /// The options with which this `Module` was constructed.
+  LeakyReLUOptions options;
+};
+
+/// A `ModuleHolder` subclass for `LeakyReLUImpl`.
+/// See the documentation for `LeakyReLUImpl` class to learn what methods it
+/// provides, and examples of how to use `LeakyReLU` with
+/// `torch::nn::LeakyReLUOptions`. See the documentation for `ModuleHolder` to
+/// learn about PyTorch's module storage semantics.
+TORCH_MODULE(LeakyReLU);
+
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ LogSigmoid ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+/// Applies the LogSigmoid function element-wise.
+/// See https://pytorch.org/docs/master/nn.html#torch.nn.LogSigmoid to learn
+/// about the exact behavior of this module.
+class TORCH_API LogSigmoidImpl : public torch::nn::Cloneable<LogSigmoidImpl> {
+ public:
+  Tensor forward(const Tensor& input);
+
+  void reset() override;
+
+  /// Pretty prints the `LogSigmoid` module into the given `stream`.
+  void pretty_print(std::ostream& stream) const override;
+};
+
+/// A `ModuleHolder` subclass for `LogSigmoidImpl`.
+/// See the documentation for `LogSigmoidImpl` class to learn what methods it
+/// provides, or the documentation for `ModuleHolder` to learn about PyTorch's
+/// module storage semantics.
+TORCH_MODULE(LogSigmoid);
+
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Softmax ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+/// Applies the Softmax function.
+/// See https://pytorch.org/docs/master/nn.html#torch.nn.Softmax to learn
+/// about the exact behavior of this module.
+///
+/// See the documentation for `torch::nn::SoftmaxOptions` class to learn what
+/// constructor arguments are supported for this module.
+///
+/// Example:
+/// ```
+/// Softmax model(SoftmaxOptions(1));
+/// ```
+class TORCH_API SoftmaxImpl : public torch::nn::Cloneable<SoftmaxImpl> {
+ public:
+  explicit SoftmaxImpl(int64_t dim) : SoftmaxImpl(SoftmaxOptions(dim)) {}
+  explicit SoftmaxImpl(const SoftmaxOptions& options_);
+
+  Tensor forward(const Tensor& input);
+
+  void reset() override;
+
+  /// Pretty prints the `Softmax` module into the given `stream`.
+  void pretty_print(std::ostream& stream) const override;
+
+  SoftmaxOptions options;
+};
+
+/// A `ModuleHolder` subclass for `SoftmaxImpl`.
+/// See the documentation for `SoftmaxImpl` class to learn what methods it
+/// provides, and examples of how to use `Softmax` with
+/// `torch::nn::SoftmaxOptions`. See the documentation for `ModuleHolder` to
+/// learn about PyTorch's module storage semantics.
+TORCH_MODULE(Softmax);
+
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Softmin ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+/// Applies the Softmin function element-wise.
+/// See https://pytorch.org/docs/master/nn.html#torch.nn.Softmin to learn
+/// about the exact behavior of this module.
+///
+/// See the documentation for `torch::nn::SoftminOptions` class to learn what
+/// constructor arguments are supported for this module.
+///
+/// Example:
+/// ```
+/// Softmin model(SoftminOptions(1));
+/// ```
+class TORCH_API SoftminImpl : public torch::nn::Cloneable<SoftminImpl> {
+ public:
+  explicit SoftminImpl(int64_t dim) : SoftminImpl(SoftminOptions(dim)) {}
+  explicit SoftminImpl(const SoftminOptions& options_);
+
+  Tensor forward(const Tensor& input);
+
+  void reset() override;
+
+  /// Pretty prints the `Softmin` module into the given `stream`.
+  void pretty_print(std::ostream& stream) const override;
+
+  SoftminOptions options;
+};
+
+/// A `ModuleHolder` subclass for `SoftminImpl`.
+/// See the documentation for `SoftminImpl` class to learn what methods it
+/// provides, and examples of how to use `Softmin` with
+/// `torch::nn::SoftminOptions`. See the documentation for `ModuleHolder` to
+/// learn about PyTorch's module storage semantics.
+TORCH_MODULE(Softmin);
+
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ LogSoftmax ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+/// Applies the LogSoftmax function element-wise.
+/// See https://pytorch.org/docs/master/nn.html#torch.nn.LogSoftmax to learn
+/// about the exact behavior of this module.
+///
+/// See the documentation for `torch::nn::LogSoftmaxOptions` class to learn what
+/// constructor arguments are supported for this module.
+///
+/// Example:
+/// ```
+/// LogSoftmax model(LogSoftmaxOptions(1));
+/// ```
+class TORCH_API LogSoftmaxImpl : public torch::nn::Cloneable<LogSoftmaxImpl> {
+ public:
+  explicit LogSoftmaxImpl(int64_t dim)
+      : LogSoftmaxImpl(LogSoftmaxOptions(dim)) {}
+  explicit LogSoftmaxImpl(const LogSoftmaxOptions& options_);
+
+  Tensor forward(const Tensor& input);
+
+  void reset() override;
+
+  /// Pretty prints the `LogSoftmax` module into the given `stream`.
+  void pretty_print(std::ostream& stream) const override;
+
+  LogSoftmaxOptions options;
+};
+
+/// A `ModuleHolder` subclass for `LogSoftmaxImpl`.
+/// See the documentation for `LogSoftmaxImpl` class to learn what methods it
+/// provides, and examples of how to use `LogSoftmax` with
+/// `torch::nn::LogSoftmaxOptions`. See the documentation for `ModuleHolder` to
+/// learn about PyTorch's module storage semantics.
+TORCH_MODULE(LogSoftmax);
+
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Softmax2d ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+/// Applies the Softmax2d function element-wise.
+/// See https://pytorch.org/docs/master/nn.html#torch.nn.Softmax2d to learn
+/// about the exact behavior of this module.
+class TORCH_API Softmax2dImpl : public torch::nn::Cloneable<Softmax2dImpl> {
+ public:
+  Tensor forward(const Tensor& input);
+
+  void reset() override;
+
+  /// Pretty prints the `Softmax2d` module into the given `stream`.
+  void pretty_print(std::ostream& stream) const override;
+};
+
+/// A `ModuleHolder` subclass for `Softmax2dImpl`.
+/// See the documentation for `Softmax2dImpl` class to learn what methods it
+/// provides, or the documentation for `ModuleHolder` to learn about PyTorch's
+/// module storage semantics.
+TORCH_MODULE(Softmax2d);
+
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ PReLU ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+/// Applies the PReLU function element-wise.
+/// See https://pytorch.org/docs/master/nn.html#torch.nn.PReLU to learn
+/// about the exact behavior of this module.
+///
+/// See the documentation for `torch::nn::PReLUOptions` class to learn what
+/// constructor arguments are supported for this module.
+///
+/// Example:
+/// ```
+/// PReLU model(PReLUOptions().num_parameters(42));
+/// ```
+class TORCH_API PReLUImpl : public torch::nn::Cloneable<PReLUImpl> {
+ public:
+  explicit PReLUImpl(const PReLUOptions& options_ = {});
+
+  Tensor forward(const Tensor& input);
+
+  void reset() override;
+
+  /// Pretty prints the `PReLU` module into the given `stream`.
+  void pretty_print(std::ostream& stream) const override;
+
+  /// The options with which this `Module` was constructed.
+  PReLUOptions options;
+
+  /// The learned weight.
+  Tensor weight;
+};
+
+/// A `ModuleHolder` subclass for `PReLUImpl`.
+/// See the documentation for `PReLUImpl` class to learn what methods it
+/// provides, and examples of how to use `PReLU` with `torch::nn::PReLUOptions`.
+/// See the documentation for `ModuleHolder` to learn about PyTorch's
+/// module storage semantics.
+TORCH_MODULE(PReLU);
+
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ReLU ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+/// Applies the ReLU function element-wise.
+/// See https://pytorch.org/docs/master/nn.html#torch.nn.ReLU to learn
+/// about the exact behavior of this module.
+///
+/// See the documentation for `torch::nn::ReLUOptions` class to learn what
+/// constructor arguments are supported for this module.
+///
+/// Example:
+/// ```
+/// ReLU model(ReLUOptions().inplace(true));
+/// ```
+class TORCH_API ReLUImpl : public torch::nn::Cloneable<ReLUImpl> {
+ public:
+  explicit ReLUImpl(const ReLUOptions& options_ = {});
+
+  Tensor forward(Tensor input);
+
+  void reset() override;
+
+  /// Pretty prints the `ReLU` module into the given `stream`.
+  void pretty_print(std::ostream& stream) const override;
+
+  /// The options with which this `Module` was constructed.
+  ReLUOptions options;
+};
+
+/// A `ModuleHolder` subclass for `ReLUImpl`.
+/// See the documentation for `ReLUImpl` class to learn what methods it
+/// provides, and examples of how to use `ReLU` with `torch::nn::ReLUOptions`.
+/// See the documentation for `ModuleHolder` to learn about PyTorch's
+/// module storage semantics.
+TORCH_MODULE(ReLU);
+
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ReLU6 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+/// Applies the ReLU6 function element-wise.
+/// See https://pytorch.org/docs/master/nn.html#torch.nn.ReLU6 to learn
+/// about the exact behavior of this module.
+///
+/// See the documentation for `torch::nn::ReLU6Options` class to learn what
+/// constructor arguments are supported for this module.
+///
+/// Example:
+/// ```
+/// ReLU6 model(ReLU6Options().inplace(true));
+/// ```
+class TORCH_API ReLU6Impl : public torch::nn::Cloneable<ReLU6Impl> {
+ public:
+  explicit ReLU6Impl(const ReLU6Options& options_ = {});
+
+  Tensor forward(Tensor input);
+
+  void reset() override;
+
+  /// Pretty prints the `ReLU6` module into the given `stream`.
+  void pretty_print(std::ostream& stream) const override;
+
+  /// The options with which this `Module` was constructed.
+  ReLU6Options options;
+};
+
+/// A `ModuleHolder` subclass for `ReLU6Impl`.
+/// See the documentation for `ReLU6Impl` class to learn what methods it
+/// provides, and examples of how to use `ReLU6` with `torch::nn::ReLU6Options`.
+/// See the documentation for `ModuleHolder` to learn about PyTorch's
+/// module storage semantics.
+TORCH_MODULE(ReLU6);
+
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ RReLU ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+/// Applies the RReLU function element-wise.
+/// See https://pytorch.org/docs/master/nn.html#torch.nn.RReLU to learn
+/// about the exact behavior of this module.
+///
+/// See the documentation for `torch::nn::RReLUOptions` class to learn what
+/// constructor arguments are supported for this module.
+///
+/// Example:
+/// ```
+/// RReLU model(RReLUOptions().lower(0.24).upper(0.42).inplace(true));
+/// ```
+class TORCH_API RReLUImpl : public torch::nn::Cloneable<RReLUImpl> {
+ public:
+  explicit RReLUImpl(const RReLUOptions& options_ = {});
+
+  Tensor forward(Tensor input);
+
+  void reset() override;
+
+  /// Pretty prints the `RReLU` module into the given `stream`.
+  void pretty_print(std::ostream& stream) const override;
+
+  /// The options with which this `Module` was constructed.
+  RReLUOptions options;
+};
+
+/// A `ModuleHolder` subclass for `RReLUImpl`.
+/// See the documentation for `RReLUImpl` class to learn what methods it
+/// provides, and examples of how to use `RReLU` with `torch::nn::RReLUOptions`.
+/// See the documentation for `ModuleHolder` to learn about PyTorch's
+/// module storage semantics.
+TORCH_MODULE(RReLU);
+
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ CELU ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+/// Applies celu over a given input.
+/// See https://pytorch.org/docs/master/nn.html#torch.nn.CELU to learn
+/// about the exact behavior of this module.
+///
+/// See the documentation for `torch::nn::CELUOptions` class to learn what
+/// constructor arguments are supported for this module.
+///
+/// Example:
+/// ```
+/// CELU model(CELUOptions().alpha(42.42).inplace(true));
+/// ```
+class TORCH_API CELUImpl : public torch::nn::Cloneable<CELUImpl> {
+ public:
+  explicit CELUImpl(const CELUOptions& options_ = {});
+
+  Tensor forward(Tensor input);
+
+  void reset() override;
+
+  /// Pretty prints the `CELU` module into the given `stream`.
+  void pretty_print(std::ostream& stream) const override;
+
+  /// The options with which this `Module` was constructed.
+  CELUOptions options;
+};
+
+/// A `ModuleHolder` subclass for `CELUImpl`.
+/// See the documentation for `CELUImpl` class to learn what methods it
+/// provides, and examples of how to use `CELU` with `torch::nn::CELUOptions`.
+/// See the documentation for `ModuleHolder` to learn about PyTorch's
+/// module storage semantics.
+TORCH_MODULE(CELU);
+
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ GLU ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+/// Applies glu over a given input.
+/// See https://pytorch.org/docs/master/nn.html#torch.nn.GLU to learn
+/// about the exact behavior of this module.
+///
+/// See the documentation for `torch::nn::GLUOptions` class to learn what
+/// constructor arguments are supported for this module.
+///
+/// Example:
+/// ```
+/// GLU model(GLUOptions(1));
+/// ```
+class TORCH_API GLUImpl : public torch::nn::Cloneable<GLUImpl> {
+ public:
+  explicit GLUImpl(const GLUOptions& options_ = {});
+
+  Tensor forward(const Tensor& input);
+
+  void reset() override;
+
+  /// Pretty prints the `GLU` module into the given `stream`.
+  void pretty_print(std::ostream& stream) const override;
+
+  /// The options with which this `Module` was constructed.
+  GLUOptions options;
+};
+
+/// A `ModuleHolder` subclass for `GLUImpl`.
+/// See the documentation for `GLUImpl` class to learn what methods it
+/// provides, and examples of how to use `GLU` with `torch::nn::GLUOptions`.
+/// See the documentation for `ModuleHolder` to learn about PyTorch's
+/// module storage semantics.
+TORCH_MODULE(GLU);
+
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ GELU ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+/// Applies gelu over a given input.
+/// See https://pytorch.org/docs/master/nn.html#torch.nn.GELU to learn
+/// about the exact behavior of this module.
+class TORCH_API GELUImpl : public torch::nn::Cloneable<GELUImpl> {
+ public:
+  explicit GELUImpl(GELUOptions options_ = {});
+
+  Tensor forward(const Tensor& input);
+
+  void reset() override;
+
+  /// Pretty prints the `GELU` module into the given `stream`.
+  void pretty_print(std::ostream& stream) const override;
+
+  /// The options with which this `Module` was constructed.
+  GELUOptions options;
+};
+
+/// A `ModuleHolder` subclass for `GELUImpl`.
+/// See the documentation for `GELUImpl` class to learn what methods it
+/// provides, or the documentation for `ModuleHolder` to learn about PyTorch's
+/// module storage semantics.
+TORCH_MODULE(GELU);
+
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ SiLU ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+/// Applies silu over a given input.
+/// See https://pytorch.org/docs/master/nn.html#torch.nn.SiLU to learn
+/// about the exact behavior of this module.
+class TORCH_API SiLUImpl : public torch::nn::Cloneable<SiLUImpl> {
+ public:
+  Tensor forward(const Tensor& input);
+
+  void reset() override;
+
+  /// Pretty prints the `SiLU` module into the given `stream`.
+  void pretty_print(std::ostream& stream) const override;
+};
+
+/// A `ModuleHolder` subclass for `SiLUImpl`.
+/// See the documentation for `SiLUImpl` class to learn what methods it
+/// provides, or the documentation for `ModuleHolder` to learn about PyTorch's
+/// module storage semantics.
+TORCH_MODULE(SiLU);
+
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Mish ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+/// Applies mish over a given input.
+/// See https://pytorch.org/docs/master/nn.html#torch.nn.Mish to learn
+/// about the exact behavior of this module.
+class TORCH_API MishImpl : public torch::nn::Cloneable<MishImpl> {
+ public:
+  Tensor forward(const Tensor& input);
+
+  void reset() override;
+
+  /// Pretty prints the `Mish` module into the given `stream`.
+  void pretty_print(std::ostream& stream) const override;
+};
+
+/// A `ModuleHolder` subclass for `MishImpl`.
+/// See the documentation for `MishImpl` class to learn what methods it
+/// provides, or the documentation for `ModuleHolder` to learn about PyTorch's
+/// module storage semantics.
+TORCH_MODULE(Mish);
+
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Sigmoid ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+/// Applies sigmoid over a given input.
+/// See https://pytorch.org/docs/master/nn.html#torch.nn.Sigmoid to learn
+/// about the exact behavior of this module.
+class TORCH_API SigmoidImpl : public torch::nn::Cloneable<SigmoidImpl> {
+ public:
+  Tensor forward(const Tensor& input);
+
+  void reset() override;
+
+  /// Pretty prints the `Sigmoid` module into the given `stream`.
+  void pretty_print(std::ostream& stream) const override;
+};
+
+/// A `ModuleHolder` subclass for `SigmoidImpl`.
+/// See the documentation for `SigmoidImpl` class to learn what methods it
+/// provides, or the documentation for `ModuleHolder` to learn about PyTorch's
+/// module storage semantics.
+TORCH_MODULE(Sigmoid);
+
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Softplus ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+/// Applies softplus over a given input.
+/// See https://pytorch.org/docs/master/nn.html#torch.nn.Softplus to learn
+/// about the exact behavior of this module.
+///
+/// See the documentation for `torch::nn::SoftplusOptions` class to learn what
+/// constructor arguments are supported for this module.
+///
+/// Example:
+/// ```
+/// Softplus model(SoftplusOptions().beta(0.24).threshold(42.42));
+/// ```
+class TORCH_API SoftplusImpl : public torch::nn::Cloneable<SoftplusImpl> {
+ public:
+  explicit SoftplusImpl(const SoftplusOptions& options_ = {});
+
+  Tensor forward(const Tensor& input);
+
+  void reset() override;
+
+  /// Pretty prints the `Softplus` module into the given `stream`.
+  void pretty_print(std::ostream& stream) const override;
+
+  /// The options with which this `Module` was constructed.
+  SoftplusOptions options;
+};
+
+/// A `ModuleHolder` subclass for `SoftplusImpl`.
+/// See the documentation for `SoftplusImpl` class to learn what methods it
+/// provides, and examples of how to use `Softplus` with
+/// `torch::nn::SoftplusOptions`. See the documentation for `ModuleHolder` to
+/// learn about PyTorch's module storage semantics.
+TORCH_MODULE(Softplus);
+
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Softshrink ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+/// Applies the soft shrinkage function element-wise.
+/// See https://pytorch.org/docs/master/nn.html#torch.nn.Softshrink to learn
+/// about the exact behavior of this module.
+///
+/// See the documentation for `torch::nn::SoftshrinkOptions` class to learn what
+/// constructor arguments are supported for this module.
+///
+/// Example:
+/// ```
+/// Softshrink model(SoftshrinkOptions(42.42));
+/// ```
+class TORCH_API SoftshrinkImpl : public torch::nn::Cloneable<SoftshrinkImpl> {
+ public:
+  explicit SoftshrinkImpl(const SoftshrinkOptions& options_ = {});
+
+  Tensor forward(const Tensor& input);
+
+  void reset() override;
+
+  /// Pretty prints the `Softshrink` module into the given `stream`.
+  void pretty_print(std::ostream& stream) const override;
+
+  /// The options with which this `Module` was constructed.
+  SoftshrinkOptions options;
+};
+
+/// A `ModuleHolder` subclass for `SoftshrinkImpl`.
+/// See the documentation for `SoftshrinkImpl` class to learn what methods it
+/// provides, and examples of how to use `Softshrink` with
+/// `torch::nn::SoftshrinkOptions`. See the documentation for `ModuleHolder` to
+/// learn about PyTorch's module storage semantics.
+TORCH_MODULE(Softshrink);
+
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Softsign ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+/// Applies Softsign over a given input.
+/// See https://pytorch.org/docs/master/nn.html#torch.nn.Softsign to learn
+/// about the exact behavior of this module.
+class TORCH_API SoftsignImpl : public torch::nn::Cloneable<SoftsignImpl> {
+ public:
+  Tensor forward(const Tensor& input);
+
+  void reset() override;
+
+  /// Pretty prints the `Softsign` module into the given `stream`.
+  void pretty_print(std::ostream& stream) const override;
+};
+
+/// A `ModuleHolder` subclass for `SoftsignImpl`.
+/// See the documentation for `SoftsignImpl` class to learn what methods it
+/// provides, or the documentation for `ModuleHolder` to learn about PyTorch's
+/// module storage semantics.
+TORCH_MODULE(Softsign);
+
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Tanh ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+/// Applies Tanh over a given input.
+/// See https://pytorch.org/docs/master/nn.html#torch.nn.Tanh to learn
+/// about the exact behavior of this module.
+class TORCH_API TanhImpl : public torch::nn::Cloneable<TanhImpl> {
+ public:
+  Tensor forward(const Tensor& input);
+
+  void reset() override;
+
+  /// Pretty prints the `Tanh` module into the given `stream`.
+  void pretty_print(std::ostream& stream) const override;
+};
+
+/// A `ModuleHolder` subclass for `TanhImpl`.
+/// See the documentation for `TanhImpl` class to learn what methods it
+/// provides, or the documentation for `ModuleHolder` to learn about PyTorch's
+/// module storage semantics.
+TORCH_MODULE(Tanh);
+
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Tanhshrink ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+/// Applies Tanhshrink over a given input.
+/// See https://pytorch.org/docs/master/nn.html#torch.nn.Tanhshrink to learn
+/// about the exact behavior of this module.
+class TORCH_API TanhshrinkImpl : public torch::nn::Cloneable<TanhshrinkImpl> {
+ public:
+  Tensor forward(const Tensor& input);
+
+  void reset() override;
+
+  /// Pretty prints the `Tanhshrink` module into the given `stream`.
+  void pretty_print(std::ostream& stream) const override;
+};
+
+/// A `ModuleHolder` subclass for `TanhshrinkImpl`.
+/// See the documentation for `TanhshrinkImpl` class to learn what methods it
+/// provides, or the documentation for `ModuleHolder` to learn about PyTorch's
+/// module storage semantics.
+TORCH_MODULE(Tanhshrink);
+
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Threshold ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+/// Applies the Threshold function element-wise.
+/// See https://pytorch.org/docs/master/nn.html#torch.nn.Threshold to learn
+/// about the exact behavior of this module.
+///
+/// See the documentation for `torch::nn::ThresholdOptions` class to learn what
+/// constructor arguments are supported for this module.
+///
+/// Example:
+/// ```
+/// Threshold model(ThresholdOptions(42.42, 24.24).inplace(true));
+/// ```
+class TORCH_API ThresholdImpl : public torch::nn::Cloneable<ThresholdImpl> {
+ public:
+  ThresholdImpl(double threshold, double value)
+      : ThresholdImpl(ThresholdOptions(threshold, value)) {}
+  explicit ThresholdImpl(const ThresholdOptions& options_);
+
+  Tensor forward(Tensor input);
+
+  void reset() override;
+
+  /// Pretty prints the `Threshold` module into the given `stream`.
+  void pretty_print(std::ostream& stream) const override;
+
+  /// The options with which this `Module` was constructed.
+  ThresholdOptions options;
+};
+
+/// A `ModuleHolder` subclass for `ThresholdImpl`.
+/// See the documentation for `ThresholdImpl` class to learn what methods it
+/// provides, and examples of how to use `Threshold` with
+/// `torch::nn::ThresholdOptions`. See the documentation for `ModuleHolder` to
+/// learn about PyTorch's module storage semantics.
+TORCH_MODULE(Threshold);
+
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ MultiheadAttention ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+/// Applies the MultiheadAttention function element-wise.
+/// See https://pytorch.org/docs/master/nn.html#torch.nn.MultiheadAttention
+/// to learn about the exact behavior of this module.
+///
+/// See the documentation for `torch::nn::MultiheadAttentionOptions` class to
+/// learn what constructor arguments are supported for this module.
+///
+/// Example:
+/// ```
+/// MultiheadAttention model(MultiheadAttentionOptions(20, 10).bias(false));
+/// ```
+class TORCH_API MultiheadAttentionImpl
+    : public torch::nn::Cloneable<MultiheadAttentionImpl> {
+ public:
+  MultiheadAttentionImpl(int64_t embed_dim, int64_t num_heads)
+      : MultiheadAttentionImpl(
+            MultiheadAttentionOptions(embed_dim, num_heads)) {}
+  explicit MultiheadAttentionImpl(const MultiheadAttentionOptions& options_);
+
+  std::tuple<Tensor, Tensor> forward(
+      const Tensor& query,
+      const Tensor& key,
+      const Tensor& value,
+      const Tensor& key_padding_mask = {},
+      bool need_weights = true,
+      const Tensor& attn_mask = {},
+      bool average_attn_weights = true);
+
+ protected:
+  FORWARD_HAS_DEFAULT_ARGS(
+      {3, AnyValue(Tensor())},
+      {4, AnyValue(true)},
+      {5, AnyValue(Tensor())},
+      {6, AnyValue(true)})
+
+ public:
+  void reset() override;
+
+  void _reset_parameters();
+
+  /// The options with which this `Module` was constructed.
+  MultiheadAttentionOptions options;
+
+  bool _qkv_same_embed_dim;
+  Tensor in_proj_weight;
+  Tensor in_proj_bias;
+  Tensor bias_k;
+  Tensor bias_v;
+  Linear out_proj = nullptr;
+  Tensor q_proj_weight;
+  Tensor k_proj_weight;
+  Tensor v_proj_weight;
+  int64_t head_dim;
+};
+
+/// A `ModuleHolder` subclass for `MultiheadAttentionImpl`.
+/// See the documentation for `MultiheadAttentionImpl` class to learn what
+/// methods it provides, and examples of how to use `MultiheadAttention` with
+/// `torch::nn::MultiheadAttentionOptions`. See the documentation for
+/// `ModuleHolder` to learn about PyTorch's module storage semantics.
+TORCH_MODULE(MultiheadAttention);
+
+} // namespace nn
+} // namespace torch

venv/lib/python3.10/site-packages/torch/include/torch/csrc/api/include/torch/nn/modules/adaptive.h

@@ -0,0 +1,109 @@
+#pragma once
+
+#include <torch/nn/cloneable.h>
+#include <torch/nn/functional/activation.h>
+#include <torch/nn/module.h>
+#include <torch/nn/modules/container/modulelist.h>
+#include <torch/nn/modules/container/sequential.h>
+#include <torch/nn/modules/linear.h>
+#include <torch/nn/options/adaptive.h>
+
+namespace torch {
+namespace nn {
+
+/// The output of a single invocation of an AdaptiveLogSoftmaxWithLoss
+/// module's `forward()` method.
+struct TORCH_API ASMoutput {
+  ASMoutput(Tensor output_, double loss_);
+
+  /// Tensor containing computed target log probabilities for each example
+  Tensor output;
+
+  /// Scalar representing the computed negative log likelihood loss
+  double loss;
+};
+
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ AdaptiveLogSoftmaxWithLoss
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+/// Efficient softmax approximation as described in
+/// `Efficient softmax approximation for GPUs`_ by Edouard Grave, Armand Joulin,
+/// Moustapha Cissé, David Grangier, and Hervé Jégou.
+/// See
+/// https://pytorch.org/docs/master/nn.html#torch.nn.AdaptiveLogSoftmaxWithLoss
+/// to learn about the exact behavior of this module.
+///
+/// See the documentation for `torch::nn::AdaptiveLogSoftmaxWithLossOptions`
+/// class to learn what constructor arguments are supported for this module.
+///
+/// Example:
+/// ```
+/// AdaptiveLogSoftmaxWithLoss model(AdaptiveLogSoftmaxWithLossOptions(8, 10,
+/// {4, 8}).div_value(2.).head_bias(true));
+/// ```
+class TORCH_API AdaptiveLogSoftmaxWithLossImpl
+    : public Cloneable<AdaptiveLogSoftmaxWithLossImpl> {
+ public:
+  AdaptiveLogSoftmaxWithLossImpl(
+      int64_t in_features,
+      int64_t n_classes,
+      std::vector<int64_t> cutoffs)
+      : AdaptiveLogSoftmaxWithLossImpl(AdaptiveLogSoftmaxWithLossOptions(
+            in_features,
+            n_classes,
+            cutoffs)) {}
+
+  explicit AdaptiveLogSoftmaxWithLossImpl(
+      AdaptiveLogSoftmaxWithLossOptions options_);
+
+  ASMoutput forward(const Tensor& input, const Tensor& target);
+
+  void reset() override;
+
+  void reset_parameters();
+
+  /// Pretty prints the `AdaptiveLogSoftmaxWithLoss` module into the given
+  /// `stream`.
+  void pretty_print(std::ostream& stream) const override;
+
+  /// Given input tensor, and output of `head`, computes the log of the full
+  /// distribution
+  Tensor _get_full_log_prob(const Tensor& input, const Tensor& head_output);
+
+  /// Computes log probabilities for all n_classes
+  Tensor log_prob(const Tensor& input);
+
+  /// This is equivalent to `log_pob(input).argmax(1)` but is more efficient in
+  /// some cases
+  Tensor predict(const Tensor& input);
+
+  /// The options with which this `Module` was constructed
+  AdaptiveLogSoftmaxWithLossOptions options;
+
+  /// Cutoffs used to assign targets to their buckets. It should be an ordered
+  /// Sequence of integers sorted in the increasing order
+  std::vector<int64_t> cutoffs;
+
+  int64_t shortlist_size;
+
+  /// Number of clusters
+  int64_t n_clusters;
+
+  /// Output size of head classifier
+  int64_t head_size;
+
+  Linear head = nullptr;
+
+  ModuleList tail;
+};
+
+/// A `ModuleHolder` subclass for `AdaptiveLogSoftmaxWithLossImpl`.
+/// See the documentation for `AdaptiveLogSoftmaxWithLossImpl` class to learn
+/// what methods it provides, and examples of how to use
+/// `AdaptiveLogSoftmaxWithLoss` with
+/// `torch::nn::AdaptiveLogSoftmaxWithLossOptions`. See the documentation for
+/// `ModuleHolder` to learn about PyTorch's module storage semantics.
+TORCH_MODULE(AdaptiveLogSoftmaxWithLoss);
+
+} // namespace nn
+} // namespace torch

venv/lib/python3.10/site-packages/torch/include/torch/csrc/api/include/torch/nn/modules/batchnorm.h

@@ -0,0 +1,250 @@
+#pragma once
+
+#include <torch/nn/cloneable.h>
+#include <torch/nn/functional/batchnorm.h>
+#include <torch/nn/init.h>
+#include <torch/nn/options/batchnorm.h>
+#include <torch/nn/pimpl.h>
+#include <torch/types.h>
+
+#include <cstdint>
+
+namespace torch {
+namespace nn {
+
+/// Base class for all (dimension-specialized) batchnorm and instancenorm
+/// modules.
+template <size_t D, typename Derived, typename DerivedOptions>
+class NormImplBase : public torch::nn::Cloneable<Derived> {
+ protected:
+  virtual void _check_input_dim(const Tensor& input) = 0;
+
+ public:
+  NormImplBase(const DerivedOptions& options_) : options(options_) {
+    // NOLINTNEXTLINE(clang-analyzer-optin.cplusplus.VirtualCall)
+    reset();
+  }
+
+  void reset() override {
+    if (options.affine()) {
+      weight = this->register_parameter(
+          "weight", torch::empty({options.num_features()}));
+      bias = this->register_parameter(
+          "bias", torch::empty({options.num_features()}));
+    } else {
+      weight =
+          this->register_parameter("weight", Tensor(), /*requires_grad=*/false);
+      bias =
+          this->register_parameter("bias", Tensor(), /*requires_grad=*/false);
+    }
+    if (options.track_running_stats()) {
+      running_mean = this->register_buffer(
+          "running_mean", torch::zeros({options.num_features()}));
+      running_var = this->register_buffer(
+          "running_var", torch::ones({options.num_features()}));
+      num_batches_tracked = this->register_buffer(
+          "num_batches_tracked", torch::tensor(0, torch::dtype(torch::kLong)));
+    } else {
+      running_mean = this->register_buffer("running_mean", Tensor());
+      running_var = this->register_buffer("running_var", Tensor());
+      num_batches_tracked =
+          this->register_buffer("num_batches_tracked", Tensor());
+    }
+    reset_parameters();
+  }
+
+  void reset_running_stats() {
+    if (options.track_running_stats()) {
+      running_mean.zero_();
+      running_var.fill_(1);
+      num_batches_tracked.zero_();
+    }
+  }
+
+  void reset_parameters() {
+    reset_running_stats();
+    if (options.affine()) {
+      torch::nn::init::ones_(weight);
+      torch::nn::init::zeros_(bias);
+    }
+  }
+
+  /// The options with which this module was constructed.
+  DerivedOptions options;
+
+  /// The learned weight.
+  /// Only defined if the `affine` option was `true` upon construction.
+  Tensor weight;
+
+  /// The learned bias.
+  /// Only defined if the `affine` option was `true` upon construction.
+  Tensor bias;
+
+  /// The running mean.
+  /// Only defined if the `track_running_stats` option was `true` upon
+  /// construction.
+  Tensor running_mean;
+
+  /// The running variance.
+  /// Only defined if the `track_running_stats` option was `true` upon
+  /// construction.
+  Tensor running_var;
+
+  /// The number of the forward call.
+  /// Only defined if the `track_running_stats` option was `true` upon
+  /// construction.
+  Tensor num_batches_tracked;
+};
+
+/// Base class for all (dimension-specialized) batchnorm modules.
+template <size_t D, typename Derived>
+class BatchNormImplBase : public NormImplBase<D, Derived, BatchNormOptions> {
+ public:
+  using NormImplBase<D, Derived, BatchNormOptions>::NormImplBase;
+
+  Tensor forward(const Tensor& input) {
+    this->_check_input_dim(input);
+    // NOLINTNEXTLINE(cppcoreguidelines-init-variables)
+    double exponential_average_factor;
+    if (this->options.momentum() == c10::nullopt) {
+      exponential_average_factor = 0.0;
+    } else {
+      exponential_average_factor = this->options.momentum().value();
+    }
+
+    if (this->is_training() && this->options.track_running_stats()) {
+      if (this->num_batches_tracked.defined()) {
+        this->num_batches_tracked += 1;
+        if (this->options.momentum() ==
+            c10::nullopt) { // use cumulative moving average
+          exponential_average_factor =
+              1.0 / this->num_batches_tracked.template item<double>();
+        } else { // use exponential moving average
+          exponential_average_factor = this->options.momentum().value();
+        }
+      }
+    }
+
+    return torch::nn::functional::detail::batch_norm(
+        input,
+        this->running_mean,
+        this->running_var,
+        this->weight,
+        this->bias,
+        this->is_training() || !this->options.track_running_stats(),
+        /*momentum=*/exponential_average_factor,
+        this->options.eps());
+  }
+
+  /// Pretty prints the `BatchNorm{1,2,3}d` module into the given `stream`.
+  void pretty_print(std::ostream& stream) const override {
+    stream << std::boolalpha << "torch::nn::BatchNorm" << D << "d("
+           << this->options.num_features() << ", "
+           << "eps=" << this->options.eps() << ", "
+           << "momentum=";
+
+    if (this->options.momentum().has_value()) {
+      stream << this->options.momentum().value();
+    } else {
+      stream << "None";
+    }
+
+    stream << ", "
+           << "affine=" << this->options.affine() << ", "
+           << "track_running_stats=" << this->options.track_running_stats()
+           << ")";
+  }
+};
+
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ BatchNorm1d
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+/// Applies the BatchNorm1d function.
+/// See https://pytorch.org/docs/master/nn.html#torch.nn.BatchNorm1d to learn
+/// about the exact behavior of this module.
+///
+/// See the documentation for `torch::nn::BatchNorm1dOptions` class to learn
+/// what constructor arguments are supported for this module.
+///
+/// Example:
+/// ```
+/// BatchNorm1d
+/// model(BatchNorm1dOptions(4).eps(0.5).momentum(0.1).affine(false).track_running_stats(true));
+/// ```
+class TORCH_API BatchNorm1dImpl : public BatchNormImplBase<1, BatchNorm1dImpl> {
+ protected:
+  void _check_input_dim(const Tensor& input) override;
+
+ public:
+  using BatchNormImplBase<1, BatchNorm1dImpl>::BatchNormImplBase;
+};
+
+/// A `ModuleHolder` subclass for `BatchNorm1dImpl`.
+/// See the documentation for `BatchNorm1dImpl` class to learn what methods it
+/// provides, and examples of how to use `BatchNorm1d` with
+/// `torch::nn::BatchNorm1dOptions`. See the documentation for `ModuleHolder` to
+/// learn about PyTorch's module storage semantics.
+TORCH_MODULE(BatchNorm1d);
+
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ BatchNorm2d
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+/// Applies the BatchNorm2d function.
+/// See https://pytorch.org/docs/master/nn.html#torch.nn.BatchNorm2d to learn
+/// about the exact behavior of this module.
+///
+/// See the documentation for `torch::nn::BatchNorm2dOptions` class to learn
+/// what constructor arguments are supported for this module.
+///
+/// Example:
+/// ```
+/// BatchNorm2d
+/// model(BatchNorm2dOptions(4).eps(0.5).momentum(0.1).affine(false).track_running_stats(true));
+/// ```
+class TORCH_API BatchNorm2dImpl : public BatchNormImplBase<2, BatchNorm2dImpl> {
+ protected:
+  void _check_input_dim(const Tensor& input) override;
+
+ public:
+  using BatchNormImplBase<2, BatchNorm2dImpl>::BatchNormImplBase;
+};
+
+/// A `ModuleHolder` subclass for `BatchNorm2dImpl`.
+/// See the documentation for `BatchNorm2dImpl` class to learn what methods it
+/// provides, and examples of how to use `BatchNorm2d` with
+/// `torch::nn::BatchNorm2dOptions`. See the documentation for `ModuleHolder` to
+/// learn about PyTorch's module storage semantics.
+TORCH_MODULE(BatchNorm2d);
+
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ BatchNorm3d
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+/// Applies the BatchNorm3d function.
+/// See https://pytorch.org/docs/master/nn.html#torch.nn.BatchNorm3d to learn
+/// about the exact behavior of this module.
+///
+/// See the documentation for `torch::nn::BatchNorm3dOptions` class to learn
+/// what constructor arguments are supported for this module.
+///
+/// Example:
+/// ```
+/// BatchNorm3d
+/// model(BatchNorm3dOptions(4).eps(0.5).momentum(0.1).affine(false).track_running_stats(true));
+/// ```
+class TORCH_API BatchNorm3dImpl : public BatchNormImplBase<3, BatchNorm3dImpl> {
+ protected:
+  void _check_input_dim(const Tensor& input) override;
+
+ public:
+  using BatchNormImplBase<3, BatchNorm3dImpl>::BatchNormImplBase;
+};
+
+/// A `ModuleHolder` subclass for `BatchNorm3dImpl`.
+/// See the documentation for `BatchNorm3dImpl` class to learn what methods it
+/// provides, and examples of how to use `BatchNorm3d` with
+/// `torch::nn::BatchNorm3dOptions`. See the documentation for `ModuleHolder` to
+/// learn about PyTorch's module storage semantics.
+TORCH_MODULE(BatchNorm3d);
+
+} // namespace nn
+} // namespace torch

venv/lib/python3.10/site-packages/torch/include/torch/csrc/api/include/torch/nn/modules/common.h

@@ -0,0 +1,97 @@
+#pragma once
+
+/// This macro enables a module with default arguments in its forward method
+/// to be used in a Sequential module.
+///
+/// Example usage:
+///
+/// Let's say we have a module declared like this:
+/// ```
+/// struct MImpl : torch::nn::Module {
+///  public:
+///   explicit MImpl(int value_) : value(value_) {}
+///   torch::Tensor forward(int a, int b = 2, double c = 3.0) {
+///     return torch::tensor(a + b + c);
+///   }
+///  private:
+///   int value;
+/// };
+/// TORCH_MODULE(M);
+/// ```
+///
+/// If we try to use it in a Sequential module and run forward:
+/// ```
+/// torch::nn::Sequential seq(M(1));
+/// seq->forward(1);
+/// ```
+///
+/// We will receive the following error message:
+/// ```
+/// MImpl's forward() method expects 3 argument(s), but received 1.
+/// If MImpl's forward() method has default arguments, please make sure
+/// the forward() method is declared with a corresponding
+/// `FORWARD_HAS_DEFAULT_ARGS` macro.
+/// ```
+///
+/// The right way to fix this error is to use the `FORWARD_HAS_DEFAULT_ARGS`
+/// macro when declaring the module:
+/// ```
+/// struct MImpl : torch::nn::Module {
+///  public:
+///   explicit MImpl(int value_) : value(value_) {}
+///   torch::Tensor forward(int a, int b = 2, double c = 3.0) {
+///     return torch::tensor(a + b + c);
+///   }
+///  protected:
+///   /*
+///   NOTE: looking at the argument list of `forward`:
+///   `forward(int a, int b = 2, double c = 3.0)`
+///   we saw the following default arguments:
+///   ----------------------------------------------------------------
+///   0-based index of default |         Default value of arg
+///   arg in forward arg list  |  (wrapped by `torch::nn::AnyValue()`)
+///   ----------------------------------------------------------------
+///               1            |       torch::nn::AnyValue(2)
+///               2            |       torch::nn::AnyValue(3.0)
+///   ----------------------------------------------------------------
+///   Thus we pass the following arguments to the `FORWARD_HAS_DEFAULT_ARGS`
+///   macro:
+///   */
+///   FORWARD_HAS_DEFAULT_ARGS({1, torch::nn::AnyValue(2)}, {2,
+///   torch::nn::AnyValue(3.0)})
+///  private:
+///   int value;
+/// };
+/// TORCH_MODULE(M);
+/// ```
+/// Now, running the following would work:
+/// ```
+/// torch::nn::Sequential seq(M(1));
+/// seq->forward(1);  // This correctly populates the default arguments for
+/// `MImpl::forward`
+/// ```
+#define FORWARD_HAS_DEFAULT_ARGS(...)                                         \
+  template <typename ModuleType, typename... ArgumentTypes>                   \
+  friend struct torch::nn::AnyModuleHolder;                                   \
+  bool _forward_has_default_args() override {                                 \
+    return true;                                                              \
+  }                                                                           \
+  unsigned int _forward_num_required_args() override {                        \
+    std::pair<unsigned int, torch::nn::AnyValue> args_info[] = {__VA_ARGS__}; \
+    return args_info[0].first;                                                \
+  }                                                                           \
+  std::vector<torch::nn::AnyValue> _forward_populate_default_args(            \
+      std::vector<torch::nn::AnyValue>&& arguments) override {                \
+    std::pair<unsigned int, torch::nn::AnyValue> args_info[] = {__VA_ARGS__}; \
+    unsigned int num_all_args = std::rbegin(args_info)->first + 1;            \
+    TORCH_INTERNAL_ASSERT(                                                    \
+        arguments.size() >= _forward_num_required_args() &&                   \
+        arguments.size() <= num_all_args);                                    \
+    std::vector<torch::nn::AnyValue> ret = std::move(arguments);              \
+    ret.reserve(num_all_args);                                                \
+    for (auto& arg_info : args_info) {                                        \
+      if (arg_info.first > ret.size() - 1)                                    \
+        ret.emplace_back(std::move(arg_info.second));                         \
+    }                                                                         \
+    return ret;                                                               \
+  }

venv/lib/python3.10/site-packages/torch/include/torch/csrc/api/include/torch/nn/modules/container/any.h

@@ -0,0 +1,372 @@
+#pragma once
+
+#include <torch/detail/static.h>
+#include <torch/nn/module.h>
+#include <torch/nn/modules/container/any_module_holder.h>
+#include <torch/nn/modules/container/any_value.h>
+#include <torch/nn/pimpl.h>
+#include <torch/types.h>
+
+#include <torch/csrc/autograd/variable.h>
+#include <torch/csrc/utils/variadic.h>
+
+#include <ATen/Device.h>
+
+#include <memory>
+#include <type_traits>
+#include <typeinfo>
+#include <utility>
+#include <vector>
+
+namespace torch {
+namespace nn {
+
+/// Stores a type erased `Module`.
+///
+/// The PyTorch C++ API does not impose an interface on the signature of
+/// `forward()` in `Module` subclasses. This gives you complete freedom to
+/// design your `forward()` methods to your liking. However, this also means
+/// there is no unified base type you could store in order to call `forward()`
+/// polymorphically for any module. This is where the `AnyModule` comes in.
+/// Instead of inheritance, it relies on type erasure for polymorphism.
+///
+/// An `AnyModule` can store any `nn::Module` subclass that provides a
+/// `forward()` method. This `forward()` may accept any types and return any
+/// type. Once stored in an `AnyModule`, you can invoke the underlying module's
+/// `forward()` by calling `AnyModule::forward()` with the arguments you would
+/// supply to the stored module (though see one important limitation below).
+/// Example:
+///
+/// \rst
+/// .. code-block:: cpp
+///
+///   struct GenericTrainer {
+///     torch::nn::AnyModule module;
+///
+///     void train(torch::Tensor input) {
+///       module.forward(input);
+///     }
+///   };
+///
+///   GenericTrainer trainer1{torch::nn::Linear(3, 4)};
+///   GenericTrainer trainer2{torch::nn::Conv2d(3, 4, 2)};
+/// \endrst
+///
+/// As `AnyModule` erases the static type of the stored module (and its
+/// `forward()` method) to achieve polymorphism, type checking of arguments is
+/// moved to runtime. That is, passing an argument with an incorrect type to an
+/// `AnyModule` will compile, but throw an exception at runtime:
+///
+/// \rst
+/// .. code-block:: cpp
+///
+///   torch::nn::AnyModule module(torch::nn::Linear(3, 4));
+///   // Linear takes a tensor as input, but we are passing an integer.
+///   // This will compile, but throw a `torch::Error` exception at runtime.
+///   module.forward(123);
+/// \endrst
+///
+/// \rst
+/// .. attention::
+///   One noteworthy limitation of `AnyModule` is that its `forward()` method
+///   does not support implicit conversion of argument types. For example, if
+///   the stored module's `forward()` method accepts a `float` and you call
+///   `any_module.forward(3.4)` (where `3.4` is a `double`), this will throw
+///   an exception.
+/// \endrst
+///
+/// The return type of the `AnyModule`'s `forward()` method is controlled via
+/// the first template argument to `AnyModule::forward()`. It defaults to
+/// `torch::Tensor`. To change it, you can write `any_module.forward<int>()`,
+/// for example.
+///
+/// \rst
+/// .. code-block:: cpp
+///
+///   torch::nn::AnyModule module(torch::nn::Linear(3, 4));
+///   auto output = module.forward(torch::ones({2, 3}));
+///
+///   struct IntModule {
+///     int forward(int x) { return x; }
+///   };
+///   torch::nn::AnyModule module(IntModule{});
+///   int output = module.forward<int>(5);
+/// \endrst
+///
+/// The only other method an `AnyModule` provides access to on the stored
+/// module is `clone()`. However, you may acquire a handle on the module via
+/// `.ptr()`, which returns a `shared_ptr<nn::Module>`. Further, if you know
+/// the concrete type of the stored module, you can get a concrete handle to it
+/// using `.get<T>()` where `T` is the concrete module type.
+///
+/// \rst
+/// .. code-block:: cpp
+///
+///   torch::nn::AnyModule module(torch::nn::Linear(3, 4));
+///   std::shared_ptr<nn::Module> ptr = module.ptr();
+///   torch::nn::Linear linear(module.get<torch::nn::Linear>());
+/// \endrst
+class AnyModule {
+ public:
+  /// A default-constructed `AnyModule` is in an empty state.
+  AnyModule() = default;
+
+  /// Constructs an `AnyModule` from a `shared_ptr` to concrete module object.
+  template <typename ModuleType>
+  explicit AnyModule(std::shared_ptr<ModuleType> module);
+
+  /// Constructs an `AnyModule` from a concrete module object.
+  template <
+      typename ModuleType,
+      typename = torch::detail::enable_if_module_t<ModuleType>>
+  explicit AnyModule(ModuleType&& module);
+
+  /// Constructs an `AnyModule` from a module holder.
+  template <typename ModuleType>
+  explicit AnyModule(const ModuleHolder<ModuleType>& module_holder);
+
+  /// Move construction and assignment is allowed, and follows the default
+  /// behavior of move for `std::unique_ptr`.
+  AnyModule(AnyModule&&) = default;
+  AnyModule& operator=(AnyModule&&) = default;
+
+  /// Creates a shallow copy of an `AnyModule`.
+  AnyModule(const AnyModule& other);
+  AnyModule& operator=(const AnyModule& other);
+
+  /// Creates a deep copy of an `AnyModule` if it contains a module, else an
+  /// empty `AnyModule` if it is empty.
+  AnyModule clone(optional<Device> device = nullopt) const;
+
+  /// Assigns a module to the `AnyModule` (to circumvent the explicit
+  /// constructor).
+  template <typename ModuleType>
+  AnyModule& operator=(std::shared_ptr<ModuleType> module);
+
+  /// Invokes `forward()` on the contained module with the given arguments, and
+  /// returns the return value as an `AnyValue`. Use this method when chaining
+  /// `AnyModule`s in a loop.
+  template <typename... ArgumentTypes>
+  AnyValue any_forward(ArgumentTypes&&... arguments);
+
+  /// Invokes `forward()` on the contained module with the given arguments, and
+  /// casts the returned `AnyValue` to the supplied `ReturnType` (which defaults
+  /// to `torch::Tensor`).
+  template <typename ReturnType = torch::Tensor, typename... ArgumentTypes>
+  ReturnType forward(ArgumentTypes&&... arguments);
+
+  /// Attempts to cast the underlying module to the given module type. Throws an
+  /// exception if the types do not match.
+  template <typename T, typename = torch::detail::enable_if_module_t<T>>
+  T& get();
+
+  /// Attempts to cast the underlying module to the given module type. Throws an
+  /// exception if the types do not match.
+  template <typename T, typename = torch::detail::enable_if_module_t<T>>
+  const T& get() const;
+
+  /// Returns the contained module in a `nn::ModuleHolder` subclass if possible
+  /// (i.e. if `T` has a constructor for the underlying module type).
+  template <typename T, typename ContainedType = typename T::ContainedType>
+  T get() const;
+
+  /// Returns a `std::shared_ptr` whose dynamic type is that of the underlying
+  /// module.
+  std::shared_ptr<Module> ptr() const;
+
+  /// Like `ptr()`, but casts the pointer to the given type.
+  template <typename T, typename = torch::detail::enable_if_module_t<T>>
+  std::shared_ptr<T> ptr() const;
+
+  /// Returns the `type_info` object of the contained value.
+  const std::type_info& type_info() const;
+
+  /// Returns true if the `AnyModule` does not contain a module.
+  bool is_empty() const noexcept;
+
+ private:
+  /// Creates a `unique_ptr<AnyModulePlaceholder>` pointing to a
+  /// `AnyModuleHolder` of the correct type. This method is used to deduce the
+  /// arguments of the module's `forward()` method.
+  template <
+      typename ModuleType,
+      typename Class,
+      typename ReturnType,
+      typename... ArgumentTypes>
+  std::unique_ptr<AnyModulePlaceholder> make_holder(
+      std::shared_ptr<ModuleType>&& module,
+      ReturnType (Class::*)(ArgumentTypes...));
+
+  /// Helper method invoked by const and non-const `get()`.
+  template <typename ModuleType, typename ReturnType, typename... ArgumentTypes>
+  ModuleType& get_(ReturnType (ModuleType::*)(ArgumentTypes...)) const;
+
+  /// Helper method invoked by const and non-const `get()`.
+  template <typename ModuleType>
+  ModuleType& get_() const;
+
+  /// The type erased module.
+  std::unique_ptr<AnyModulePlaceholder> content_;
+};
+
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ AnyModule ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+template <typename ModuleType>
+AnyModule::AnyModule(std::shared_ptr<ModuleType> module)
+    : content_(make_holder(
+          std::move(module),
+          &std::remove_reference<ModuleType>::type::forward)) {
+  // `AnyModule` can only store an `nn::Module` subclass object that provides
+  // a `forward()` method that has a non-templatized return type.
+  // (e.g. `AnyModule` cannot store `nn::Sequential`, because `nn::Sequential`'s
+  // `forward()` method has a templatized return type.)
+  static_assert(
+      torch::detail::is_module<ModuleType>::value,
+      "Can only store object derived from nn::Module into AnyModule");
+  static_assert(
+      torch::detail::has_forward<ModuleType>::value,
+      "Can only store module with a forward() method that has a non-templatized"
+      " argument type and return type into AnyModule (e.g. we cannot store nn::Sequential"
+      "into AnyModule, because its forward() method's argument type and return type are templatized."
+      " If you need to use nn::Sequentials inside each other you can subclass "
+      "nn::Sequential and write a non-templatized forward function for it. You can checkout "
+      "https://github.com/pytorch/vision/blob/2f46070f3cb1ea894d82578f3dc5677f82f34958/torchvision/csrc/models/mnasnet.cpp#L59 "
+      "for an example on how to do this.).");
+}
+
+template <typename ModuleType, typename>
+AnyModule::AnyModule(ModuleType&& module)
+    : AnyModule(
+          std::make_shared<ModuleType>(std::forward<ModuleType>(module))) {}
+
+template <typename ModuleType>
+AnyModule::AnyModule(const ModuleHolder<ModuleType>& module_holder)
+    : AnyModule(module_holder.ptr()) {}
+
+inline AnyModule::AnyModule(const AnyModule& other)
+    : content_(other.content_ ? other.content_->copy() : nullptr) {}
+
+inline AnyModule& AnyModule::operator=(const AnyModule& other) {
+  if (this != &other) {
+    content_ = other.content_ ? other.content_->copy() : nullptr;
+  }
+  return *this;
+}
+
+inline AnyModule AnyModule::clone(optional<Device> device) const {
+  AnyModule clone;
+  clone.content_ = content_ ? content_->clone_module(device) : nullptr;
+  return clone;
+}
+
+template <typename ModuleType>
+AnyModule& AnyModule::operator=(std::shared_ptr<ModuleType> module) {
+  // NOLINTNEXTLINE(cppcoreguidelines-c-copy-assignment-signature)
+  return (*this = AnyModule(std::move(module)));
+}
+
+template <typename... ArgumentTypes>
+AnyValue AnyModule::any_forward(ArgumentTypes&&... arguments) {
+  TORCH_CHECK(!is_empty(), "Cannot call forward() on an empty AnyModule");
+  std::vector<AnyValue> values;
+  values.reserve(sizeof...(ArgumentTypes));
+  torch::apply(
+      [&values](AnyValue&& value) { values.push_back(std::move(value)); },
+      AnyValue(std::forward<ArgumentTypes>(arguments))...);
+  return content_->forward(std::move(values));
+}
+
+template <typename ReturnType, typename... ArgumentTypes>
+ReturnType AnyModule::forward(ArgumentTypes&&... arguments) {
+  return any_forward(std::forward<ArgumentTypes>(arguments)...)
+      .template get<ReturnType>();
+}
+
+template <typename T, typename>
+T& AnyModule::get() {
+  TORCH_CHECK(!is_empty(), "Cannot call get() on an empty AnyModule");
+  return get_<T>();
+}
+
+template <typename T, typename>
+const T& AnyModule::get() const {
+  TORCH_CHECK(!is_empty(), "Cannot call get() on an empty AnyModule");
+  return get_<T>();
+}
+
+template <typename T, typename ContainedType>
+T AnyModule::get() const {
+  return T(ptr<ContainedType>());
+}
+
+inline std::shared_ptr<Module> AnyModule::ptr() const {
+  TORCH_CHECK(!is_empty(), "Cannot call ptr() on an empty AnyModule");
+  return content_->ptr();
+}
+
+template <typename T, typename>
+std::shared_ptr<T> AnyModule::ptr() const {
+  TORCH_CHECK(!is_empty(), "Cannot call ptr() on an empty AnyModule");
+  // Call get() but discard the value, just to do the type checking.
+  get_<T>();
+  return std::dynamic_pointer_cast<T>(ptr());
+}
+
+inline const std::type_info& AnyModule::type_info() const {
+  TORCH_CHECK(!is_empty(), "Cannot call type_info() on an empty AnyModule");
+  return content_->type_info;
+}
+
+inline bool AnyModule::is_empty() const noexcept {
+  return content_ == nullptr;
+}
+
+// Private Methods
+
+template <
+    typename ModuleType,
+    typename Class,
+    typename ReturnType,
+    typename... ArgumentTypes>
+std::unique_ptr<AnyModulePlaceholder> AnyModule::make_holder(
+    std::shared_ptr<ModuleType>&& module,
+    ReturnType (Class::*)(ArgumentTypes...)) {
+  static_assert(
+      torch::detail::check_not_lvalue_references<ArgumentTypes...>(),
+      "Modules stored inside AnyModule must not take references. "
+      "Use pointers instead.");
+  static_assert(
+      !std::is_void<ReturnType>::value,
+      "AnyModule cannot store modules that return void "
+      "(you can return a dummy value).");
+  return std::make_unique<
+      AnyModuleHolder<decay_t<ModuleType>, ArgumentTypes...>>(
+      std::move(module));
+}
+
+template <typename ModuleType>
+ModuleType& AnyModule::get_() const {
+  using M = typename std::remove_reference<ModuleType>::type;
+  static_assert(
+      torch::detail::has_forward<M>::value,
+      "Can only call AnyModule::get<T> with a type T that has a forward method");
+  return get_(&M::forward);
+}
+
+template <typename ModuleType, typename ReturnType, typename... ArgumentTypes>
+ModuleType& AnyModule::get_(
+    ReturnType (ModuleType::*)(ArgumentTypes...)) const {
+  if (typeid(ModuleType).hash_code() == type_info().hash_code()) {
+    return *static_cast<AnyModuleHolder<ModuleType, ArgumentTypes...>&>(
+                *content_)
+                .module;
+  }
+  AT_ERROR(
+      "Attempted to cast module of type ",
+      c10::demangle(type_info().name()),
+      " to type ",
+      c10::demangle(typeid(ModuleType).name()));
+}
+
+} // namespace nn
+} // namespace torch

venv/lib/python3.10/site-packages/torch/include/torch/csrc/api/include/torch/nn/modules/container/any_value.h

@@ -0,0 +1,124 @@
+#pragma once
+
+#include <torch/detail/static.h>
+#include <torch/nn/module.h>
+#include <torch/nn/pimpl.h>
+#include <torch/types.h>
+
+#include <torch/csrc/autograd/variable.h>
+#include <torch/csrc/utils/variadic.h>
+
+#include <memory>
+#include <type_traits>
+#include <typeinfo>
+#include <utility>
+
+namespace torch {
+namespace nn {
+
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ AnyValue ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+/// An implementation of `std::any` which stores
+/// a type erased object, whose concrete value can be retrieved at runtime by
+/// checking if the `typeid()` of a requested type matches the `typeid()` of
+/// the object stored.
+class AnyValue {
+ public:
+  /// Move construction and assignment is allowed, and follows the default
+  /// behavior of move for `std::unique_ptr`.
+  AnyValue(AnyValue&&) = default;
+  AnyValue& operator=(AnyValue&&) = default;
+
+  /// Copy construction and assignment is allowed.
+  AnyValue(const AnyValue& other) : content_(other.content_->clone()) {}
+  AnyValue& operator=(const AnyValue& other) {
+    content_ = other.content_->clone();
+    return *this;
+  }
+
+  /// Constructs the `AnyValue` from value type.
+  template <typename T>
+  // NOLINTNEXTLINE(bugprone-forwarding-reference-overload)
+  explicit AnyValue(T&& value)
+      : content_(std::make_unique<Holder<decay_t<T>>>(std::forward<T>(value))) {
+  }
+
+  /// Returns a pointer to the value contained in the `AnyValue` if the type
+  /// passed as template parameter matches the type of the value stored, and
+  /// returns a null pointer otherwise.
+  template <typename T>
+  T* try_get() {
+    static_assert(
+        !std::is_reference<T>::value,
+        "AnyValue stores decayed types, you cannot cast it to a reference type");
+    static_assert(
+        !std::is_array<T>::value,
+        "AnyValue stores decayed types, you must cast it to T* instead of T[]");
+    if (typeid(T).hash_code() == type_info().hash_code()) {
+      return &static_cast<Holder<T>&>(*content_).value;
+    }
+    return nullptr;
+  }
+
+  /// Returns the value contained in the `AnyValue` if the type passed as
+  /// template parameter matches the type of the value stored, and throws an
+  /// exception otherwise.
+  template <typename T>
+  T get() {
+    if (auto* maybe_value = try_get<T>()) {
+      return *maybe_value;
+    }
+    AT_ERROR(
+        "Attempted to cast AnyValue to ",
+        c10::demangle(typeid(T).name()),
+        ", but its actual type is ",
+        c10::demangle(type_info().name()));
+  }
+
+  /// Returns the `type_info` object of the contained value.
+  const std::type_info& type_info() const noexcept {
+    return content_->type_info;
+  }
+
+ private:
+  friend struct AnyModulePlaceholder;
+  friend struct TestAnyValue;
+
+  /// \internal
+  /// The static type of the object we store in the `AnyValue`, which erases the
+  /// actual object's type, allowing us only to check the `type_info` of the
+  /// type stored in the dynamic type.
+  struct Placeholder {
+    explicit Placeholder(const std::type_info& type_info_) noexcept
+        : type_info(type_info_) {}
+    Placeholder(const Placeholder&) = default;
+    Placeholder(Placeholder&&) = default;
+    virtual ~Placeholder() = default;
+    virtual std::unique_ptr<Placeholder> clone() const {
+      TORCH_CHECK(false, "clone() should only be called on `AnyValue::Holder`");
+    }
+    const std::type_info& type_info;
+  };
+
+  /// \internal
+  /// The dynamic type of the object we store in the `AnyValue`, which hides the
+  /// actual object we have erased in this `AnyValue`.
+  template <typename T>
+  struct Holder : public Placeholder {
+    /// A template because T&& would not be universal reference here.
+    template <typename U>
+    // NOLINTNEXTLINE(bugprone-forwarding-reference-overload)
+    explicit Holder(U&& value_) noexcept
+        : Placeholder(typeid(T)), value(std::forward<U>(value_)) {}
+    std::unique_ptr<Placeholder> clone() const override {
+      return std::make_unique<Holder<T>>(value);
+    }
+    T value;
+  };
+
+  /// The type erased object.
+  std::unique_ptr<Placeholder> content_;
+};
+
+} // namespace nn
+} // namespace torch

venv/lib/python3.10/site-packages/torch/include/torch/csrc/api/include/torch/nn/modules/container/functional.h

@@ -0,0 +1,105 @@
+#pragma once
+
+#include <torch/csrc/Export.h>
+#include <torch/csrc/utils/variadic.h>
+#include <torch/nn/cloneable.h>
+#include <torch/nn/pimpl.h>
+#include <torch/types.h>
+
+#include <functional>
+#include <utility>
+
+namespace torch {
+namespace nn {
+
+/// Wraps a function in a `Module`.
+///
+/// The `Functional` module allows wrapping an arbitrary function or function
+/// object in an `nn::Module`. This is primarily handy for usage in
+/// `Sequential`.
+///
+/// \rst
+/// .. code-block:: cpp
+///
+///   Sequential sequential(
+///     Linear(3, 4),
+///     Functional(torch::relu),
+///     BatchNorm1d(3),
+///     Functional(torch::elu, /*alpha=*/1));
+/// \endrst
+///
+/// While a `Functional` module only accepts a single `Tensor` as input, it is
+/// possible for the wrapped function to accept further arguments. However,
+/// these have to be bound *at construction time*. For example, if
+/// you want to wrap `torch::leaky_relu`, which accepts a `slope` scalar as its
+/// second argument, with a particular value for its `slope` in a `Functional`
+/// module, you could write
+///
+/// \rst
+/// .. code-block:: cpp
+///
+///   Functional(torch::leaky_relu, /*slope=*/0.5)
+/// \endrst
+///
+/// The value of `0.5` is then stored within the `Functional` object and
+/// supplied to the function call at invocation time. Note that such bound
+/// values are evaluated eagerly and stored a single time. See the documentation
+/// of [std::bind](https://en.cppreference.com/w/cpp/utility/functional/bind)
+/// for more information on the semantics of argument binding.
+///
+/// \rst
+/// .. attention::
+///   After passing any bound arguments, the function must accept a single
+///   tensor and return a single tensor.
+/// \endrst
+///
+/// Note that `Functional` overloads the call operator (`operator()`) such that
+/// you can invoke it with `my_func(...)`.
+class TORCH_API FunctionalImpl : public torch::nn::Cloneable<FunctionalImpl> {
+ public:
+  using Function = std::function<Tensor(Tensor)>;
+
+  /// Constructs a `Functional` from a function object.
+  explicit FunctionalImpl(Function function);
+
+  template <
+      typename SomeFunction,
+      typename... Args,
+      typename = torch::enable_if_t<(sizeof...(Args) > 0)>>
+  explicit FunctionalImpl(SomeFunction original_function, Args&&... args)
+      // NOLINTNEXTLINE(modernize-avoid-bind)
+      : function_(std::bind(
+            original_function,
+            /*input=*/std::placeholders::_1,
+            std::forward<Args>(args)...)) {
+    // std::bind is normally evil, but (1) gcc is broken w.r.t. handling
+    // parameter pack expansion in lambdas and (2) moving parameter packs into
+    // a lambda only works with C++14, so std::bind is the more move-aware
+    // solution here.
+  }
+
+  void reset() override;
+
+  /// Pretty prints the `Functional` module into the given `stream`.
+  void pretty_print(std::ostream& stream) const override;
+
+  /// Forwards the `input` tensor to the underlying (bound) function object.
+  Tensor forward(Tensor input);
+
+  /// Calls forward(input).
+  Tensor operator()(Tensor input);
+
+  bool is_serializable() const override;
+
+ private:
+  Function function_;
+};
+
+/// A `ModuleHolder` subclass for `FunctionalImpl`.
+/// See the documentation for `FunctionalImpl` class to learn what methods it
+/// provides, or the documentation for `ModuleHolder` to learn about PyTorch's
+/// module storage semantics.
+TORCH_MODULE(Functional);
+
+} // namespace nn
+} // namespace torch