src/vs/workbench/services/userDataSync/browser/userDataSyncWorkbenchService.ts/UserDataSyncWorkbenchService/currentSessionId
class UserDataSyncWorkbenchService:	private get currentSessionId(): string | undefined {
		if (this._cachedCurrentSessionId === null) {
			this._cachedCurrentSessionId = this.getStoredCachedSessionId();
		}
		return this._cachedCurrentSessionId;
	}