Update app.py

app.py

@@ -116,11 +116,10 @@ def get_messages(client, thread):
     return messages
 
 #XXXXX
-def extract_file_ids(data):
+def extract_file_ids(step_details):
     file_ids = []
-    steps = data.get('data', [])
 
-    for step in steps:
+    for step in step_details:
         step_details = step.get('step_details', {})
         tool_calls = step_details.get('tool_calls', [])