src/vs/workbench/contrib/notebook/browser/services/notebookExecutionStateServiceImpl.ts/NotebookExecutionStateService/getCellExecutionsForNotebook
class NotebookExecutionStateService:	getCellExecutionsForNotebook(notebook: URI): INotebookCellExecution[] {
		const exeMap = this._executions.get(notebook);
		return exeMap ? Array.from(exeMap.values()) : [];
	}