src/vs/platform/workspaces/electron-main/workspacesManagementMainService.ts/WorkspacesManagementMainService/createUntitledWorkspaceSync
class WorkspacesManagementMainService:	createUntitledWorkspaceSync(folders?: IWorkspaceFolderCreationData[], remoteAuthority?: string): IWorkspaceIdentifier {
		const { workspace, storedWorkspace } = this.newUntitledWorkspace(folders, remoteAuthority);
		const configPath = workspace.configPath.fsPath;

		mkdirSync(dirname(configPath), { recursive: true });
		writeFileSync(configPath, JSON.stringify(storedWorkspace, null, '\t'));

		return workspace;
	}