@type t() :: %APM.Message.GeneratorStatus{
  bat_current_setpoint: Float32,
  battery_current: Float32,
  bus_voltage: Float32,
  generator_speed: MAVLink.Types.uint16_t(),
  generator_temperature: MAVLink.Types.int16_t(),
  load_current: Float32,
  power_generated: Float32,
  rectifier_temperature: MAVLink.Types.int16_t(),
  runtime: MAVLink.Types.uint32_t(),
  status: MapSet.t(APM.Types.mav_generator_status_flag()),
  time_until_maintenance: MAVLink.Types.int32_t()
}