1def logic_mixin_factory(mass, mass_attr_name, material, material_attr_name, float_method_name):
 2    class LogicMixin:
 3        def is_a_witch(self):
 4            if getattr(self, mass_attr_name, None) == mass or \
 5               getattr(self, material_attr_name, None) == material or \
 6               callable(getattr(self, float_method_name, None)):
 7                return "Burn her!"
 8
 9            return "No, but it's a pity, cuz she looks like a witch!"
10
11    return LogicMixin