def init(cls, typ, class2type):
        """
        Defines custom fields in the value factory so that the importer can find them
        @param typ
        @param class2type
        """
        field = typ.getField(cls.FIELD_NAME)
        class2type.put( StrStrHashMap , typ )
        typ.setComponentType( StrStrHashMap )
        typ.setImportExportHelper( StrStrHashMapSerializer(typ, field))
        typ.putValidator(field, Validator_object.get(1))
        typ.lock()
def __enter__(self):
        """
        Syntax sugar which helps in celery tasks, cron jobs, and other scripts

        Usage:
            with Tenant.objects.get(schema_name='test') as tenant:
                # run some code in tenant test
            # run some code in previous tenant (public probably)
        """
        connection = connections[get_tenant_database_alias()]
        self._previous_tenant.append(connection.tenant)
        self.activate()

        return self