Update app.py

app.py

@@ -49,9 +49,7 @@ llm_model = None
 def respond(
     message: str,
     history: List[Tuple[str, str]],
-    model: str = "WizardLM-2-7B.Q6_K.gguf
-
-",  # Set default model
+    model: str = "WizardLM-2-7B.Q6_K.gguf",  # Set default model
     system_message: str = "You are a helpful assistant.",
     max_tokens: int = 1024,
     temperature: float = 0.7,