def METHOD_NAME(unit, axis):
    """
    Set the default axis ticks and labels.
    Parameters
    ----------
    unit : `.UnitData`
        object string unit information for value
    axis : `~matplotlib.axis.Axis`
        axis for which information is being set
        .. note:: *axis* is not used
    Returns
    -------
    `~matplotlib.units.AxisInfo`
        Information to support default tick labeling
    """
    StrCategoryConverter._validate_unit(unit)
    # locator and formatter take mapping dict because
    # args need to be pass by reference for updates
    majloc = StrCategoryLocator(unit._mapping)
    majfmt = StrCategoryFormatter(unit._mapping)
    return units.AxisInfo(majloc=majloc, majfmt=majfmt)