start abstract method
void
start()
Runs the body, in the zone this is called from.
Called inside the work of JobContext.unattended, the job starts in the zone that work was started from, past any zone forked inside the work, as a job made in there does.
Throws StateError if the job already ran, and also if it was cancelled before it started: a job dropped then is finished, and a finished job does not run.
See Deferred start on the extending page.
Implementation
void start();