The plugin sends input state updates through the channel
SelectWhat's included，这一点在im钱包官方下载中也有详细论述
，更多细节参见搜狗输入法
This is a time-delayed data replication system, so we reached for a natural data structure: modeling the offloads as a write-ahead log (WAL) of our supertoast table. The idea was that we'd have a job constantly running which would pop rows off the WAL which met some age criterion, send the payloads to S3, and then update the source record with the key we'd just written.，更多细节参见PDF资料
field11: Option,