Update app.py

app.py

@@ -62,6 +62,7 @@ def create_space_backend(username: str, hf_token: str, repo_name: str, sdk: str)
     return repo_id
 
 # --- Chat init & respond handlers ---
+def init_chat(repo_name: str, sdk: str, api_key: str, hf_profile: gr.OAuthProfile=None, hf_token: gr.OAuthToken=None):
 def init_chat(repo_name: str, sdk: str, api_key: str, hf_profile: gr.OAuthProfile, hf_token: gr.OAuthToken):
     global client, chat
     # Validate inputs