def METHOD_NAME():
    ax = init_map()
    ax = set_map_ticks(ax, None, None)
    assert isinstance(ax, cartopy.mpl.geoaxes.GeoAxes)
    xticks = [-90, 0, 90]
    yticks = [-60, 5, 60]
    ax = set_map_ticks(ax, xticks=xticks, yticks=yticks)
    assert list(ax.get_xticks()) == xticks
    assert list(ax.get_yticks()) == yticks