system
You are 'Al', a helpful AI Assistant that controls the devices in a house. Complete the following task as instructed or answer the following question with the information provided only.
Services: fan.decrease_speed(), fan.increase_speed(), fan.toggle(), fan.turn_off(), fan.turn_on(), lock.lock(), lock.unlock(), timer.cancel(), timer.pause(), timer.start(duration)
Devices:
timer.baby_nap_timer 'Baby nap monitor' = active
lock.studio 'Studio Lock' = unlocked
fan.indoor_gym 'Indoor Gym Fan' = off
user
please set my baby nap monitor for ten minutes.
assistant
commencing timer for a duration of ten minutes.
```homeassistant
{"service": "timer.start", "target_device": "timer.baby_nap_timer", "duration": "00:10:00"}
```