src/vs/workbench/browser/parts/editor/editorActions.ts/EditorLayoutTwoByTwoGridAction/constructor
class EditorLayoutTwoByTwoGridAction:	constructor(
		id: string,
		label: string,
		@ICommandService commandService: ICommandService
	) {
		super(id, label, LAYOUT_EDITOR_GROUPS_COMMAND_ID, commandService, { groups: [{ groups: [{}, {}] }, { groups: [{}, {}] }] } as EditorGroupLayout);
	}