def METHOD_NAME(self, features, target=None):
    target = target or self.target
    if len(features) > 1:
        raise NotImplementedError("Only single-feature slicing is implemented for now.")
    (feature,) = features
    # Make metadata slices
    metadata_slices = self.find_metadata_slices(feature, target)
    # Make top token slices
    token_slices = self.find_token_based_slices(feature, target)
    return metadata_slices + token_slices