def parse_known_args(
        self,
        args: Sequence[str | os.PathLike[str]],
        namespace: argparse.Namespace | None = None,
    ) -> argparse.Namespace:
        """Parse the known arguments at this point.

        :returns: An argparse namespace object.
        """
        return self.parse_known_and_unknown_args(args, namespace=namespace)[0]
Parse the known arguments at this point.

        :returns: An argparse namespace object.
        
src/_pytest/config/argparsing.py