def sector_shift(self):
        """
        Property with current sector size shift. Actually sector size is
        2 ** sector shift
        """
        header = self.source.header
        return header.mini_sector_shift if self._is_mini \
            else header.sector_shift
def sector_shift ( self ) : header = self . source . header return header . mini_sector_shift if self . _is_mini else header . sector_shift
Property with current sector size shift. Actually sector size is
        2 ** sector shift