input: Write a python function to update device status based on Verisure overview data.
  assert update_device_status({'armState': {'statusType': 'DISARMED'}, 'controlPlugs': [], 'climateValues': []}) == "Device atHome turned on"
  assert update_device_status({'armState': {'statusType': 'ARMED_AWAY'}, 'controlPlugs': [{'area': 'Living Room', 'currentState': 'ON'}], 'climateValues': []}) == "Device atHome turned off"
  assert update_device_status({'armState': {'statusType': 'ARMED_HOME'}, 'controlPlugs': [{'area': 'Kitchen', 'currentState': 'OFF'}], 'climateValues': [{'deviceArea': 'Bedroom', 'time': '2023-10-09T10:20:30.000', 'temperature': 22}]}) == "Device atHome turned on"
output: def update_device_status(data):
      arm_state = data.get('armState', {}).get('statusType', '')
      if arm_state == 'DISARMED':
          return "Device atHome turned on"
      elif arm_state == 'ARMED_AWAY':
          return "Device atHome turned off"
      elif arm_state == 'ARMED_HOME':
          return "Device atHome turned on"
      return "Unknown status"