(cls)
return []
Should return a list of functions with args: (couch_object, sql_object)
        These will be called in turn when syncing couch model to SQL
Should return a list of functions with args: (couch_object, sql_object)
        These will be called in turn when syncing couch model to SQL
Should return a list of functions with args : ( couch_object sql_object ) These will be called in turn when syncing couch model to SQL
def _migration_get_custom_couch_to_sql_functions(cls):
        """
        Should return a list of functions with args: (couch_object, sql_object)
        These will be called in turn when syncing couch model to SQL
        """
        return []
def _migration_get_custom_couch_to_sql_functions ( cls ) : return [ ]