add ZeroGPU decoration

app.py

@@ -1,3 +1,4 @@
+import spaces
 import os
 import gradio as gr
 import torch
@@ -122,6 +123,7 @@ def translate_to_english(text):
 generated_images = None
 last_genimg_times = 0
 
+@spaces.GPU(duration=120)
 def generate_images(history):
   global generated_images  # 使用全域變數來儲存圖片
   global last_genimg_times