Add @spaces.GPU decorator for GPU-enabled Space

app.py

@@ -1,6 +1,7 @@
 import gradio as gr
 import torch
 from transformers import AutoModelForCausalLM, AutoTokenizer
+import spaces
 
 # Model configuration
 MODEL_ID = "yasserrmd/DentaInstruct-1.2B"
@@ -65,6 +66,7 @@ def format_prompt(message, history):
     
     return prompt
 
+@spaces.GPU(duration=60)
 def generate_response(
     message,
     history,