src/vs/platform/userDataSync/common/userDataSyncStoreService.ts/UserDataSyncStoreManagementService/getPreviousUserDataSyncStore
class UserDataSyncStoreManagementService:	async getPreviousUserDataSyncStore(): Promise<IUserDataSyncStore | undefined> {
		return this.toUserDataSyncStore(this.previousConfigurationSyncStore);
	}