code: def calibrate(self, data, calibration):
          
          tic = datetime.now()
  
          if calibration == 'counts':
              return data
  
          if calibration in ['radiance', 'reflectance', 'brightness_temperature']:
              data = self.convert_to_radiance(data)
          if calibration == 'reflectance':
              data = self._vis_calibrate(data)
          elif calibration == 'brightness_temperature':
              data = self._ir_calibrate(data)
  
          logger.debug("Calibration time " + str(datetime.now() - tic))
          return data
docs: Calibrate the data