Update app.py

app.py

@@ -1,9 +1,9 @@
 from huggingface_hub import InferenceClient
 import gradio as gr
-import os 
 
-
-client = InferenceClient("mistralai/Mixtral-8x7B-Instruct-v0.1")
+client = InferenceClient(
+    "mistralai/Mixtral-8x7B-Instruct-v0.1"
+)
 
 
 def format_prompt(message, history):
@@ -92,4 +92,4 @@ gr.ChatInterface(
     additional_inputs=additional_inputs,
     title="Exam Advisor for Postgraduate Trained 🏛️",
     concurrency_limit=20,
-).launch(show_api=False)
+).launch(show_api=False)