@classmethod
def CheckFirstUnitCharacterExcludes(cls, postcode):
    character = postcode.inward_unit[0]
    impacted_by_rule = (character in cls.UnitExcludes)
    return impacted_by_rule
@classmethod
def CheckFirstUnitCharacterExcludes(cls, postcode):
    character = postcode.inward_unit[0]
    impacted_by_rule = (character in cls.UnitExcludes)
    return impacted_by_rule