def __init__()

in utils/interpolation_base.py [0:0]


    def __init__(self, interp: Interpolation, param=Param(), num_it_super=None):
        self.interp = interp
        self.param = param
        self.E = None

        if num_it_super is None:
            if self.param.odd_multisteps:
                self.num_it_super = len(self.param.scales) * 2
            else:
                self.num_it_super = len(self.param.scales) * 2 - 1
        else:
            self.num_it_super = num_it_super