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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def defaultDecoder(self, message, server):
 """Called to decode queries when no handler for that mode is found. @raises ProtocolError: This implementation always raises L{ProtocolError}. """

        mode = message.getArg(OPENID_NS, 'mode')
        fmt = "Unrecognized OpenID mode %r"
        raise ProtocolError(message, text=fmt % (mode,))