added text streamer

app.py

@@ -12,4 +12,5 @@ iface = gr.ChatInterface(
 
 
 if __name__ == "__main__":
+    progress=gr.Progress(track_tqdm=True)
     iface.launch()

backend.py

@@ -72,12 +72,13 @@ def handle_query(query_str, chathistory):
 
     try:
         result = index.as_query_engine(text_qa_template=text_qa_template, streaming=True).query(query_str)
-        response_text = result.response
+        response_text = result.get_response
 
         # Remove any unwanted tokens like <end_of_turn>
         cleaned_result = response_text.replace("<end_of_turn>", "").strip()
 
         yield cleaned_result
+        
     except Exception as e:
         yield f"Error processing query: {str(e)}"