code: def set_mode_auto(self):
          '''enter auto mode'''
          if self.mavlink10():
              self.mav.command_long_send(self.target_system, self.target_component,
                                         mavlink.MAV_CMD_MISSION_START, 0, 0, 0, 0, 0, 0, 0, 0)
          else:
              MAV_ACTION_SET_AUTO = 13
              self.mav.action_send(self.target_system, self.target_component, MAV_ACTION_SET_AUTOf set_mode_auto(self):
          '''enter auto mode'''
          if self.mavlink10():
              self.mav.command_long_send(self.target_system, self.target_component,
                                         mavlink.MAV_CMD_MISSION_START, 0, 0, 0, 0, 0, 0, 0, 0)
          else:
              MAV_ACTION_SET_AUTO = 13
              self.mav.action_send(self.target_system, self.target_component, MAV_ACTION_SET_AUTO)
docs: enter auto mode