'Returns Extended Resource for service type management.'

@classmethod
def get_resources(cls):

    attr_map = RESOURCE_ATTRIBUTE_MAP[COLLECTION_NAME]
    collection_name = COLLECTION_NAME.replace('_', '-')
    controller = base.create_resource(collection_name, RESOURCE_NAME, servicetype_db.ServiceTypeManager.get_instance(), attr_map)
    return [extensions.ResourceExtension(collection_name, controller, attr_map=attr_map)]
