Trying to fix the generator not initialized error

app.py

@@ -2,16 +2,12 @@
 import gradio as gr
 from fastapi.testclient import TestClient
 import os
+from fastapi_app import app as fastapi_app
 
-# IMPORT your FastAPI app object here. Change the import path to match your project.
-# Example: from my_fastapi_app import app as fastapi_app
-from fastapi_app import app as fastapi_app  # <-- adjust if filename/variable differs
+client = TestClient(fastapi_app)
 
 def call_generate(file_obj, topics: str, n_questions: int, difficulty: str, qtype: str):
-    client = TestClient(fastapi_app)  # will trigger startup/lifespan handlers
-
     # Prepare file tuple expected by requests-like interface:
-    # ('filefieldname', (filename, fileobj, 'application/pdf'))
     if file_obj is None:
         return "Please upload a PDF."