def METHOD_NAME(self, from_angle_units, to_angle_units):
    if from_angle_units == to_angle_units:
        return 1
    multiplier = angle_remap_options.get((from_angle_units, to_angle_units))
    if not multiplier:
        raise Error(f"node {self.name} failure to map angle units, {from_angle_units}->{to_angle_units}")
    return multiplier