https://github.com/apache/airflow/pull/27892 added Internal API as part of Webserver.

We need to introduce `airlfow internal-api` CLI command that starts Internal API as a independent component.
"""Class to keep information about command line argument."""
    def __init__(
        self,
        flags=_UNSET,
        help=_UNSET,
        action=_UNSET,
        default=_UNSET,
        nargs=_UNSET,
        type=_UNSET,
        choices=_UNSET,
        required=_UNSET,
        metavar=_UNSET,
        dest=_UNSET,
    ):
        self.flags = flags
        self.kwargs = {}
        for k, v in locals().items():
            if v is _UNSET:
                continue
            if k in ("self", "flags"):
                continue
            self.kwargs[k] = v
    def add_to_parser(self, parser: argparse.ArgumentParser):
        """Add this argument to an ArgumentParser."""
        parser.add_argument(*self.flags, **self.kwargs)
def positive_int(*, allow_zero):