src/vs/workbench/api/browser/mainThreadNotebookDto.ts/fromCellExecuteUpdateDto
	export function fromCellExecuteUpdateDto(data: extHostProtocol.ICellExecuteUpdateDto): ICellExecuteUpdate {
		if (data.editType === CellExecutionUpdateType.Output) {
			return {
				editType: data.editType,
				append: data.append,
				outputs: data.outputs.map(fromNotebookOutputDto)
			};
		} else if (data.editType === CellExecutionUpdateType.OutputItems) {
			return {
				editType: data.editType,
				append: data.append,
				outputId: data.outputId,
				items: data.items.map(fromNotebookOutputItemDto)
			};
		} else {
			return data;
		}
	}