def get_feature_args(self, kwargs: DFeatures, build_to_src: str) -> T.List[str]:
        """Used by D for extra language features."""
        # TODO: using a TypeDict here would improve this
        raise EnvironmentException(f'{self.id} does not implement get_feature_args')
Used by D for extra language features.
mesonbuild/compilers/compilers.py