Update app.py

app.py

@@ -128,7 +128,7 @@ def stream_chat(message, history: list, system: str, temperature: float, max_new
     input_token_len = input_ids.shape[1]
     
     output = ""
-    for new_token in streamer:
+    for next_text in streamer:
         yield TextGenerationStreamOutput(
             index=0,
             token=TextGenerationStreamOutputToken(