fix import spaces zero_gpu error https://discuss.huggingface.co/t/issues-with-sadtalker-zerogpu-spaces-inquiry-about-community-grant/110625/10

app.py

@@ -1,3 +1,16 @@
+
+import os
+# https://discuss.huggingface.co/t/issues-with-sadtalker-zerogpu-spaces-inquiry-about-community-grant/110625/10
+if os.environ.get("SPACES_ZERO_GPU") is not None:
+    import spaces
+else:
+    class spaces:
+        @staticmethod
+        def GPU(func):
+            def wrapper(*args, **kwargs):
+                return func(*args, **kwargs)
+            return wrapper
+    
 import gradio as gr
 import pandas as pd
 import os
@@ -8,6 +21,10 @@ import utilities as us
 import plotly.express as px
 import plotly.graph_objects as go
 
+@spaces.GPU
+def model_prediction():
+  pass
+
 with open('style.css', 'r') as file:
     css = file.read()