@classmethod
def get_list(cls, id_list):
    """Get a list of instance of an entity by a list of IDs or slugs.

        Args:
            id_list (list):
                List of sD or slugs of entities in the catalog to retrieve instances.

        Raises:
            CatalogError: if there's a problem when connecting to the catalog or no entities are found.

        """
    return cls._entity_repo.get_by_id_list(id_list)
