if res is None:
        return ""

    return "{}::{}::{}".format(res['apiVersion'],
                               res['kind'],
                               res['metadata']['name'])


def keydiff(k0, k1):
    k0s = set(k0)
    k1s = set(k1)
    added = k1s - k0s
    removed = k0s - k1s
    common = k0s.intersection(k1s)

    return added, removed, common


def drop_keys(res, k1, k2):

                this.smb2 = true;
                // also read the rest of the header
                int lenDiff = Smb2Constants.SMB2_HEADER_LENGTH - SmbConstants.SMB1_HEADER_LENGTH;
                if ( readn(this.in, this.sbuf, 4 + SmbConstants.SMB1_HEADER_LENGTH, lenDiff) < lenDiff ) {
                    return null;
                }
                return (long) Encdec.dec_uint64le(this.sbuf, 28);
            }