@classmethod
def _models_dict(cls, api_version):
    return {k: v for (k, v) in cls.models(api_version).__dict__.items() if isinstance(v, type)}
@classmethod
def _models_dict(cls, api_version):
    return {k: v for (k, v) in cls.models(api_version).__dict__.items() if isinstance(v, type)}