def METHOD_NAME():
    ts = Timeseries()  # need one to get check methods..
    result = ts._check_timeseries((datetime.now(), (1.0, 2.0)))
    assert result
    with raises(TimeseriesError):
        result = ts._check_timeseries(('2007-03-01T13:00:00', (1.0, 2.0)))
        assert result