Accept / deny control of this MAV

                gcs_system_id             : ID of the GCS this message (uint8_t)
                control_request           : 0: request control of this MAV, 1: Release control of this MAV (uint8_t)
                ack                       : 0: ACK, 1: NACK: Wrong passkey, 2: NACK: Unsupported passkey encryption method, 3: NACK: Already under control (uint8_t)

def change_operator_control_ack_send(self, gcs_system_id, control_request, ack, force_mavlink1=False):
                '''
                Accept / deny control of this MAV

                gcs_system_id             : ID of the GCS this message (uint8_t)
                control_request           : 0: request control of this MAV, 1: Release control of this MAV (uint8_t)
                ack                       : 0: ACK, 1: NACK: Wrong passkey, 2: NACK: Unsupported passkey encryption method, 3: NACK: Already under control (uint8_t)

                '''
                return self.send(self.change_operator_control_ack_encode(gcs_system_id, control_request, ack), force_mavlink1=force_mavlink1)