def METHOD_NAME():
    param = util.DelimitedTuple(sep=',')
    result = param.convert('spam,eggs', None, None)
    assert result == ('spam', 'eggs')
    param = util.DelimitedTuple(sep=',', type=int)
    result = param.convert('10,20', None, None)
    assert result == (10, 20)
    with pytest.raises(click.BadParameter):
        param.convert('spam,20', None, None)