(cls)
return []
Should return a list of SubModelSpec tuples, one for each SchemaListProperty
        in the couch class. Should be identical in the couch and sql mixins.
Should return a list of SubModelSpec tuples, one for each SchemaListProperty
        in the couch class. Should be identical in the couch and sql mixins.
Should return a list of SubModelSpec tuples one for each SchemaListProperty in the couch class . Should be identical in the couch and sql mixins .
def _migration_get_submodels(cls):
        """
        Should return a list of SubModelSpec tuples, one for each SchemaListProperty
        in the couch class. Should be identical in the couch and sql mixins.
        """
        return []
def _migration_get_submodels ( cls ) : return [ ]