Update app.py

app.py

@@ -63,7 +63,7 @@ embedding_model = SentenceTransformer("sentence-transformers/all-MiniLM-L6-v2")
 qa_pipeline = pipeline("text2text-generation", model="google/flan-t5-base")
 
 @Tool
-def document_qna_tool_fn(pdf_path: str, question: str) -> str:
+def document_qna_tool(pdf_path: str, question: str) -> str:
     import traceback
 
     try: