def to_digestable(self, origin = None):
        f = cStringIO.StringIO()
        self.to_wire(f, None, origin)
        return f.getvalue()
Convert rdata to a format suitable for digesting in hashes.  This
dataset/ETHPy150Open catap/namebench/nb_third_party/dns/rdata.py/Rdata.to_digestable