def get_manufacturer(self):
        if self.is_variant():
            return self.parent.manufacturer
        else:
            return self.manufacturer
pmt -n 6 populations, no seed so different test run each time
dataset/ETHPy150Open diefenbach/django-lfs/lfs/catalog/models.py/Product.get_manufacturer--crossover with--dataset/ETHPy150Open jon-jacky/PyModel/samples/populations/test_populations.py/PopulationTest.test_n6