PID tuning information

                axis                      : axis (uint8_t)
                desired                   : desired rate (degrees/s) (float)
                achieved                  : achieved rate (degrees/s) (float)
                FF                        : FF component (float)
                P                         : P component (float)
                I                         : I component (float)
                D                         : D component (float)

def pid_tuning_send(self, axis, desired, achieved, FF, P, I, D, force_mavlink1=False):
                '''
                PID tuning information

                axis                      : axis (uint8_t)
                desired                   : desired rate (degrees/s) (float)
                achieved                  : achieved rate (degrees/s) (float)
                FF                        : FF component (float)
                P                         : P component (float)
                I                         : I component (float)
                D                         : D component (float)

                '''
                return self.send(self.pid_tuning_encode(axis, desired, achieved, FF, P, I, D), force_mavlink1=force_mavlink1)