def delete(self, name, *args):
        """Delete records.  The first argument is always a name.  The other
        arguments can be:

                - I{nothing}

                - rdataset...

                - rdata...

                - rdtype, [string...]"""

        if isinstance(name, (str, unicode)):
            name = dns.name.from_text(name, None)
        if len(args) == 0:
            rrset = self.find_rrset(self.authority, name, dns.rdataclass.ANY,
                                    dns.rdatatype.ANY, dns.rdatatype.NONE,
                                    dns.rdatatype.ANY, True, True)
        elif isinstance(args[0], dns.rdataset.Rdataset):
            for rds in args:
                for rd in rds:
                    self._add_rr(name, 0, rd, dns.rdataclass.NONE)
        else:
            args = list(args)
            if isinstance(args[0], dns.rdata.Rdata):
                for rd in args:
                    self._add_rr(name, 0, rd, dns.rdataclass.NONE)
            else:
                rdtype = args.pop(0)
                if isinstance(rdtype, (str, unicode)):
                    rdtype = dns.rdatatype.from_text(rdtype)
                if len(args) == 0:
                    rrset = self.find_rrset(self.authority, name,
                                            self.zone_rdclass, rdtype,
                                            dns.rdatatype.NONE,
                                            dns.rdataclass.ANY,
                                            True, True)
                else:
                    for s in args:
                        rd = dns.rdata.from_text(self.zone_rdclass, rdtype, s,
                                                 self.origin)
                        self._add_rr(name, 0, rd, dns.rdataclass.NONE)
Delete records.  The first argument is always a name.  The other
        arguments can be:

                - I{nothing}

                - rdataset...

                - rdata...

                - rdtype, [string...]