Update assistants.py

assistants.py

@@ -169,7 +169,7 @@ def execute_tool_calls(run_steps):
         
         if hasattr(step_details, "tool_calls"):
             for tool_call in step_details.tool_calls:
-                if tool_call.output != None
+                if tool_call.output != None:
                     print(get_json("tool_call", tool_call))
                     
                     func_name = ""