src/vs/workbench/contrib/notebook/browser/view/cellParts/codeCellRunToolbar.ts/RunToolbar/didRenderCell
class RunToolbar:	override didRenderCell(element: ICellViewModel): void {
		this.cellDisposables.add(registerStickyScroll(this.notebookEditor, element, this.runButtonContainer));

		this.toolbar.context = <INotebookCellActionContext>{
			ui: true,
			cell: element,
			notebookEditor: this.notebookEditor,
			$mid: MarshalledId.NotebookCellActionContext
		};
	}