change the model to arcee-ai/Mistral-7B-Instruct-v0.2-expanded-sec-1.6B-tokens

app.py

@@ -50,7 +50,7 @@ def model_chat(query: Optional[str], history: Optional[History], system: str
     messages = history_to_messages(history, system)
     messages.append({'role': Role.USER, 'content': query})
     gen = Generation.call(
-        model = "arcee-ai/Saul-Base-Calme-7B-Instruct-slerp",
+        model = "arcee-ai/Mistral-7B-Instruct-v0.2-expanded-sec-1.6B-tokens",
         messages=messages,
         result_format='message',
         stream=True