code: def mid_pulse_sp(self):
          
          self._mid_pulse_sp, value = self.get_attr_int(self._mid_pulse_sp, 'mid_pulse_sp')
          return value
docs: Used to set the pulse size in milliseconds for the signal that tells the
          servo to drive to the mid position_sp. Default value is 1500. Valid
          values are 1300 to 1700. For example, on a 180 degree servo, this would be
          90 degrees. On continuous rotation servo, this is the 'neutral' position_sp
          where the motor does not turn. You must write to the position_sp attribute for
          changes to this attribute to take effect.