Update app.py

app.py

@@ -66,13 +66,10 @@ def process_pdf_and_ask_question(pdf_file,question):
     res = chain({"question": question})
     return res["answer"]
 
-
-app=gr.interface(fn=process_pdf_and_ask_question,
+gr.interface(fn=grad,
             inputs=[gr.File(file_count="single", type="filepath"), gr.Textbox(lines=2, placeholder="Ask a question...")],
             outputs="text",
              title="PDF Q&A",
             description="Upload a PDF and ask questions about it.",
              
-            )
-
-app.launch()
+            ).launch()