src/vs/platform/userDataSync/common/userDataSyncService.ts/ManualSyncTask/getUserDataSyncConfiguration
class ManualSyncTask:	private async getUserDataSyncConfiguration(): Promise<IUserDataSyncConfiguration> {
		const local = this.configurationService.getValue<IUserDataSyncConfiguration>(USER_DATA_SYNC_CONFIGURATION_SCOPE);
		const settingsSynchronizer = this.synchronisers.find(synchronizer => synchronizer instanceof SettingsSynchroniser);
		if (settingsSynchronizer) {
			const remote = await (<SettingsSynchroniser>settingsSynchronizer).getRemoteUserDataSyncConfiguration(this.manifest);
			return { ...local, ...remote };
		}
		return local;
	}