(cls)
Should return a list of field names to sync. These field names should
        be identical between the Couch and SQL models.
Should return a list of field names to sync. These field names should
        be identical between the Couch and SQL models.
Should return a list of field names to sync . These field names should be identical between the Couch and SQL models .
def _migration_get_fields(cls):
        """
        Should return a list of field names to sync. These field names should
        be identical between the Couch and SQL models.
        """
        raise NotImplementedError()
def _migration_get_fields ( cls ) : raise NotImplementedError ( )