@classmethod
def _load_model_arch(cls, path, meta):
    from keras.models import model_from_json
    arch_file = os.path.join(path, meta['arch'])
    if os.path.isfile(arch_file):
        with io.open(arch_file) as f:
            model = model_from_json(f.read())
        return model
    else:
        return None
@classmethod
def _load_model_arch(cls, path, meta):
    from keras.models import model_from_json
    arch_file = os.path.join(path, meta['arch'])
    if os.path.isfile(arch_file):
        with io.open(arch_file) as f:
            model = model_from_json(f.read())
        return model
    else:
        return None