src/vs/platform/userDataSync/common/userDataSyncService.ts/UserDataSyncService/replace
class UserDataSyncService:	async replace(uri: URI): Promise<void> {
		this.checkEnablement();

		await this.performSynchronizerAction(async synchronizer => {
			if (await synchronizer.replace(uri)) {
				return true;
			}
			return undefined;
		});
	}