Pair token encoding (digit pairs as single tokens)
"But it's a festival, they're expensive. We're a bit lucky we had two before anyone else anyway."，这一点在同城约会中也有详细论述
{ 34, 46, 48, 36, 25, 11, 13, 27 },，详情可参考Line官方版本下载
override fun encode(writer: ProtoWriter, `value`: KAccount) {//省略}