How to use the awe.chart.NumberSequenceTransformer function in awe

def test_transform_getter_and_setter():
    page = Page()
    c = page.new_chart()
    assert isinstance(c.transformer, chart.NoOpTransformer)
    c.transformer = '1to2'
    assert isinstance(c.transformer, chart.DictLevelsTransformer)
    c.transformer = 'numbers'
    assert isinstance(c.transformer, chart.NumberSequenceTransformer)
    numbers = chart.NumberSequenceTransformer()
    c.transformer = numbers
    assert c.transformer is numbers
    c.transformer = {'type': 'flat', 'chart_mapping': [], 'series_mapping': [], 'value_key': ''}
    assert isinstance(c.transformer, chart.FlatDictTransformer)

def test_numbers_transformer():
    numbers = chart.NumberSequenceTransformer()
    transform = numbers.transform([1, 2.0])
    assert transform == {
        '': {
            'series': [
                {'data': [(0, 1), (0, 2)], 'name': 1}
            ],
            'title': '',
            'type': 'line'
        }
    }
    transform = numbers.transform([[1, 2, 3], [4, 5, 6]])
    assert transform == {
        '': {
            'series': [
                {'data': [(0, 1), (0, 4)], 'name': 1},
                {'data': [(0, 2), (0, 5)], 'name': 2},

def test_numbers_transformer_timed_tuples():
    ts = 1000.12
    expected_ts = int(ts * 1000)
    numbers = chart.NumberSequenceTransformer()
    for ds in [list, tuple]:
        transform = numbers.transform([ds((ts, 1234))])
        assert transform == {
            '': {'series': [{'data': [(expected_ts, 1234)], 'name': 1}], 'title': '', 'type': 'line'}
        }