src/vs/platform/userDataSync/common/userDataSyncService.ts/UserDataSyncService/stop
class UserDataSyncService:	private async stop(synchronizers: IUserDataSynchroniser[]): Promise<void> {
		if (this.status === SyncStatus.Idle) {
			return;
		}

		for (const synchroniser of synchronizers) {
			try {
				if (synchroniser.status !== SyncStatus.Idle) {
					await synchroniser.stop();
				}
			} catch (e) {
				this.logService.error(e);
			}
		}

	}