int writeParamCalls = 0;
        int writeBytesCalls = 0;
        int readParamCalls = 0;
        int readBytesCalls = 0;

        @Override
        int writeParameterWordsWireFormat(byte[] dst, int dstIndex) {
            writeParamCalls++;
            return 10;
        }

        @Override
        int writeBytesWireFormat(byte[] dst, int dstIndex) {
            writeBytesCalls++;
            return 20;
        }