src/vs/workbench/api/browser/mainThreadNotebookEditors.ts/MainThreadNotebookEditors/$trySetDecorations
class MainThreadNotebookEditors:	$trySetDecorations(id: string, range: ICellRange, key: string): void {
		const editor = this._notebookEditorService.getNotebookEditor(id);
		if (editor) {
			const notebookEditor = editor as INotebookEditor;
			notebookEditor.setEditorDecorations(key, range);
		}
	}