Payload payload = Trace.newPayload("metric-name"); //create a new Payload, the time point is
(System.currentTimeMillis()) payload.addTag("key-1", "value-1").addTag("key-2", "value-2"); //add tag
payload.value(1000); //set value = 1000, count = 1, and the Payload finishes, refer to :
Payload.value(long)