import flipperzero as f0

f0.dialog_message_set_header("Important", 64, 12)
f0.dialog_message_set_text("Shutdown?", 64, 24)
f0.dialog_message_set_button("Yes", f0.INPUT_BUTTON_LEFT)
f0.dialog_message_set_button("No", f0.INPUT_BUTTON_RIGHT)

while f0.dialog_message_show() is not f0.INPUT_BUTTON_LEFT:
    pass