Update app.py

app.py

@@ -130,6 +130,8 @@ def execute_tool_call(tool_call):
 
 def get_run_step_details(run_steps):
     run_step_details = []
+
+    result = ""
     
     for step in run_steps.data:
         step_details = step.step_details
@@ -145,7 +147,7 @@ def get_run_step_details(run_steps):
                     print(result)
         ###
 
-    return run_step_details
+    return result
 
 def get_messages(client, thread):
     messages = client.beta.threads.messages.list(