src/vs/workbench/services/workingCopy/common/workingCopyBackupService.ts/WorkingCopyBackupService/initialize
class WorkingCopyBackupService:	private initialize(backupWorkspaceHome: URI | undefined): WorkingCopyBackupServiceImpl | InMemoryWorkingCopyBackupService {
		if (backupWorkspaceHome) {
			return new WorkingCopyBackupServiceImpl(backupWorkspaceHome, this.fileService, this.logService);
		}

		return new InMemoryWorkingCopyBackupService();
	}