'Keyword constructor arguments which are expected to result in an
instance which returns C{bytes} when encoded.
@return: A L{dict} of keyword arguments.'

@classmethod
def kwargs(cls):

    return dict(id=256, auth=1, ednsVersion=None, answers=[dns.RRHeader('', payload=dns.Record_A('1.2.3.4', ttl=0), auth=True)])
