code: def get_inches(self):
      ''' convert the measurement to inches '''
      if self._obs_value in self.MISSING:
        return 'MISSING'
      if self._obs_units == self.MILLIMETERS:
        return round(self.INCH_CONVERSION_FACTOR * self._obs_value, 4f get_inches(self):
      ''' convert the measurement to inches '''
      if self._obs_value in self.MISSING:
        return 'MISSING'
      if self._obs_units == self.MILLIMETERS:
        return round(self.INCH_CONVERSION_FACTOR * self._obs_value, 4)
docs: convert the measurement to inches