
Struct base type of statistics
{ "name": "_statistics", "base": "", "fields": [ { "name": "received", "type": "uint64" }, { "name": "remained", "type": "uint64" }, { "name": "issued", "type": "uint64[]" }, { "name": "active_num", "type": "uint64" }, { "name": "update_time", "type": "time_point" } ] }