Update app.py

app.py

@@ -283,7 +283,7 @@ async def extract_metadata_from_query(query: str):
     extractor = QueryMetadataExtractor()
     metadata_fields = {"publisher", "publish_date", "document_type"}
     
-    result = extractor.run(query, metadata_fields)
+    return extractor.run(query, metadata_fields)
     
 @app.post("/pdf2text/")
 async def convert_upload_file(file: UploadFile = File(...)):