def get_rdataset(self, rdclass, rdtype, covers=dns.rdatatype.NONE,
                     create=False):

        try:
            rds = self.find_rdataset(rdclass, rdtype, covers, create)
        except KeyError:
            rds = None
        return rds
Get an rdataset matching the specified properties in the
dataset/ETHPy150Open catap/namebench/nb_third_party/dns/node.py/Node.get_rdataset