public ConvertStatics merge(ConvertStatics statics) {
            this.total += statics.total;
            this.success += statics.success;
            this.failed += statics.failed;
            this.useTime += statics.useTime;
            return this;
        }
Metrics convert to meter system statics
oap-server/server-receiver-plugin/skywalking-zabbix-receiver-plugin/src/main/java/org/apache/skywalking/oap/server/receiver/zabbix/provider/ZabbixMetrics.java