poped histroy

app.py

@@ -119,7 +119,10 @@ def combine_responses(responses):
 
 def generate_response_for_chunk(chunk, history, temperature, max_new_tokens):
     start_time = time.time()
-    
+    if len(history) == 0:
+        pass
+    else:
+        history.pop()
     conversation = [{"role": "system", "content": SYS_PROMPT}]
     for user, assistant in history:
         conversation.extend([{"role": "user", "content": user}, {"role": "assistant", "content": assistant}])