def adapt(self, value):
        raise NotImplementedError()
Test that it subtracts from month and adds to year to fix date
dataset/ETHPy150Open jek/flatland/flatland/schema/scalars.py/Scalar.adapt--crossover with--dataset/ETHPy150Open wreckage/django-happenings/tests/unit_tests/test_utils/test_clean.py/CleanYearMonthTest.test_fix_year_month_next