Update app.py

app.py

@@ -322,7 +322,7 @@ def reset_cache_image_actu(id,cache_image_actu=cache_image_actu):
 def reset_cache_image_all_sessions(cache_image=cache_image):
     cache_image.clear()
     return 
-def set_session(id_session,cache_image,cache_image_actu)
+def set_session(id_session,cache_image,cache_image_actu):
     print(f"id = {id_session}")
     cache_image[f"{id_session}"]=[]
     cache_image_actu[f"{id_session}"]=[]