src/vs/platform/userDataSync/common/userDataAutoSyncService.ts/AutoSync/start
class AutoSync:	start(): void {
		this._register(this.onDidFinishSync(() => this.waitUntilNextIntervalAndSync()));
		this._register(toDisposable(() => {
			if (this.syncPromise) {
				this.syncPromise.cancel();
				this.logService.info('Auto sync: Cancelled sync that is in progress');
				this.syncPromise = undefined;
			}
			this.syncTask?.stop();
			this.logService.info('Auto Sync: Stopped');
		}));
		this.sync(AutoSync.INTERVAL_SYNCING, false);
	}