Call the eventStart to start timing for an event. Configure the name of the event, and event properties to report. When the event comes to an end, a "_duration" property will automatically be added for this event (unit: millisecond). It should be noted that there can only be one timing task for the same event.

Step 1: Create Duration Event

Call example:

solarengine.eventStart("test");

Step 2: Report Duration Event

       Call eventFinish to report the duration event.

Call example:

let customProperties = {
	test1:"key1",
	test2:2,
	test3:[1,"2"]
}
solarengine.eventFinish("test",customProperties);

Note:

       When reporting the preset event _appEnd, the duration starting from the last _appStart will be reported by default. That is, the duration of an exit event does not need to be configured to start timing, and will be assigned a value by default.