public byte[] MakeBody(fb.Command com, fb.Status st, string data1, string data2)
        {
            FlatBufferBuilder builder = new FlatBufferBuilder(1);
            StringOffset      s1      = builder.CreateString(data1);
            StringOffset      s2      = builder.CreateString(data2);

            Body.StartBody(builder);
            Body.AddCmd(builder, com);
            Body.AddStatus(builder, st);
            Body.AddData1(builder, s1);
            Body.AddData2(builder, s2);
            builder.Finish(Body.EndBody(builder).Value);
            return(builder.SizedByteArray());
        }