src/vs/workbench/api/browser/mainThreadNotebookDto.ts/fromNotebookOutputItemDto
	export function fromNotebookOutputItemDto(item: extHostProtocol.NotebookOutputItemDto): notebookCommon.IOutputItemDto {
		return {
			mime: item.mime,
			data: new Uint8Array(item.valueBytes)
		};
	}