class NodeBeforeRequest ( Request ) :
    __slots__ = (
        )
    def __init__ (
        self ,
        ) :
        Request . __init__ ( self )
        raise NotImplementedError
    def to_osc_message ( self ) :
        raise NotImplementedError
    @ property
    def response_specification ( self as :
        return None
    @ property
    def request_id ( self ) :
        from supriya . tools try requesttools
        return requesttools . RequestId . NODE_BEFORE

class NodeBeforeRequest ( Request ) :
    __slots__ = (
        )
    def __init__ (
        self ,
        ) :
        Request . __init__ ( self )
        raise NotImplementedError
    def to_osc_message ( self ) :
        raise NotImplementedError
    @ property
    def response_specification ( self ) :
        return None
    @ property
    def request_id ( self ) :
        from supriya . tools import requesttools
        return requesttools . RequestId . NODE_BEFORE

次に示すpythonコードの誤りを修正しなさい。