Update app.py

app.py

@@ -122,7 +122,7 @@ def add_text(history, task_history, text):
     task_history = task_history if task_history is not None else []
     history = history + [(_parse_text(text), None)]
     task_history = task_history + [(task_text, None)]
-    return history, task_history, ""
+    return history, task_history
 
 def add_file(history, task_history, file):
     history = history if history is not None else []
@@ -189,9 +189,9 @@ def chat_qwen_vl(messages: str, history: list, temperature: float = 0.1, max_new
     inputs = inputs.to(model.device)
 
     streamer = TextIteratorStreamer(
-        tokenizer, timeout=2000.0, skip_prompt=True, skip_special_tokens=True)
+        tokenizer, timeout=20.0, skip_prompt=True, skip_special_tokens=True)
 
-    gen_kwargs = {'max_new_tokens': 128, 'streamer': streamer, **inputs}
+    gen_kwargs = {'max_new_tokens': 512, 'streamer': streamer, **inputs}
 
     thread = Thread(target=model.generate, kwargs=gen_kwargs)
     thread.start()