update to fix example errors

app.py

@@ -34,9 +34,7 @@ iface = gr.Interface(
     inputs=[
         gr.components.Textbox(lines=5, placeholder="Enter text (maximum 5 lines)", label="Input"),
         gr.components.Radio(
-            choices=[
-                'en->ss',
-                'ss->en'],
+            choices=['en->ss', 'ss->en'],
             default='en->ss',
             label='Direction'),
     ],
@@ -44,3 +42,4 @@ iface = gr.Interface(
 )
 
 iface.launch(enable_queue=True)
+