TimeseriesContinuous(
    name='piecewise_constant',
    time_units=<Unit('year')>,
    values_units=<Unit('gigametric_ton')>,
    function=0th order ContinuousFunctionScipyPPoly(
        ppoly=scipy.interpolate._interpolate.PPoly(
            c=array([[10., 12.]]),
            x=array([ 1., 10., 20.]))),
    domain=(<Quantity(1, 'year')>, <Quantity(20, 'year')>))
