@classmethod
def CheckAreasWithoutDistrictTen(cls, postcode):
    impacted_by_rule = False
    if (postcode.outward_district == 10):
        areas_without_district_ten = cls.AreasWithoutDistrictTen
        impacted_by_rule = (postcode.outward_area in areas_without_district_ten)
    return impacted_by_rule
@classmethod
def CheckAreasWithoutDistrictTen(cls, postcode):
    impacted_by_rule = False
    if (postcode.outward_district == 10):
        areas_without_district_ten = cls.AreasWithoutDistrictTen
        impacted_by_rule = (postcode.outward_area in areas_without_district_ten)
    return impacted_by_rule