Builds a dummy METAR string from a mission file

    Args:
        mission_file: input mission file
        icao: dummy ICAO (defaults to XXXX)
        time: dummy time (defaults to now())

    Returns: METAR str

def get_metar_from_mission(
        mission_file: str,
        icao: str = 'XXXX',
        time: str = None,
) -> str:
    """
    Builds a dummy METAR string from a mission file

    Args:
        mission_file: input mission file
        icao: dummy ICAO (defaults to XXXX)
        time: dummy time (defaults to now())

    Returns: METAR str

    """
    return _MetarFromMission(
        mission_file=mission_file,
        icao=icao,
        time=time,
    ).metar