flags = readInt2( buffer, bufferIndex );
        bufferIndex += 4;

        referrals = new Referral[numReferrals];
        for (int ri = 0; ri < numReferrals; ri++) {
            referrals[ri] = new Referral();
            bufferIndex += referrals[ri].readWireFormat( buffer, bufferIndex, len );
        }

        return bufferIndex - start;
    }
    public String toString() {