code: def set_servo(self, channel, pwm):
          '''set a servo value'''
          self.mav.command_long_send(self.target_system, self.target_component,
                                     mavlink.MAV_CMD_DO_SET_SERVO, 0,
                                     channel, pwm,
                                     0, 0, 0, 0, 0f set_servo(self, channel, pwm):
          '''set a servo value'''
          self.mav.command_long_send(self.target_system, self.target_component,
                                     mavlink.MAV_CMD_DO_SET_SERVO, 0,
                                     channel, pwm,
                                     0, 0, 0, 0, 0)
docs: set a servo value