Update app.py

app.py

@@ -4,6 +4,6 @@ def echo(message, history):
     return message
 
 print("Hello World")
-chatbot = gr.ChatInterface(echo, type = "messages") #chatbot UI - conversion history and user input 
+chatbot = gr.ChatInterface(echo, type="messages") #chatbot UI - conversion history and user input 
 
 chatbot.launch()