code: func NewHeartbeat(CUSTOM_MODE uint32, TYPE uint8, AUTOPILOT uint8, BASE_MODE uint8, SYSTEM_STATUS uint8, MAVLINK_VERSION uint8) *Heartbeat {
  	m := Heartbeat{}
  	m.CUSTOM_MODE = CUSTOM_MODE
  	m.TYPE = TYPE
  	m.AUTOPILOT = AUTOPILOT
  	m.BASE_MODE = BASE_MODE
  	m.SYSTEM_STATUS = SYSTEM_STATUS
  	m.MAVLINK_VERSION = MAVLINK_VERSION
  	return &m
  }
docs: // NewHeartbeat returns a new Heartbeat