adding whisper feature for duration

app.py

@@ -167,7 +167,7 @@ with gr.Blocks(css=css) as demo:
                         step=1,
                         value=DEFAULT_MAX_NEW_TOKENS,
                         )
-                    duration = gr.slider(label='duration in min',minimum=5,maximum = 10,step=1,value=DEFAULT_DURATION)
+                    duration = gr.Slider(label='duration in min',minimum=5,maximum = 10,step=1,value=DEFAULT_DURATION)
                     temperature = gr.Slider(
                     label='Temperature',
                     minimum=0.1,