@staticmethod
def get_max(features, max_key=lambda x: x, **_kwargs):
    """
        Returns native max of given sequence of features.

        :param collections.Iterable[Feature] features:
            sequence of features
        :param lambda max_key:
        :param _kwargs:
        :return:
        """
    m = max(features, key=max_key)
    return m
