Update assistants.py

assistants.py

@@ -173,7 +173,7 @@ def execute_tool_calls(run_steps):
                 if hasattr(tool_call, "function"):
                     tool_call_ids.append(tool_call.id)
                     tool_call_results.append(execute_tool_call(tool_call))
-                else
+                else:
                     gr.Info(tool_call)
 
     return tool_call_ids, tool_call_results