451     def set(self, key, val, coded_val,  argument
562     def value_decode(self, val):  argument
572     def value_encode(self, val):  argument
582     def __init__(self, input=None):  argument
689     def value_decode(self, val):  argument
691     def value_encode(self, val):  argument
710     def __init__(self, input=None):  argument
715     def value_decode(self, val):  argument
718     def value_encode(self, val):  argument
735     def __init__(self, input=None):  argument
740     def value_decode(self, val):  argument
746     def value_encode(self, val):  argument