Update app.py

app.py

@@ -105,7 +105,7 @@ with gr.Blocks(css="style.css",theme='xiaobaiyuan/theme_brief') as demo:
     extractor  = Extractor()
           
     upload_button.upload(file_output_fn,upload_button,file_output)
-    summary_btn.upload( extractor._refine_summary,[upload_button],summary)  
+    summary_btn.click( extractor._refine_summary,[upload_button],summary)  
     
     tags_btn.click(Tags.extract_tags,summary,tags)
     key_value_btn.click( KeyValue.extract_key_value_pair,summary,key_value)