How to use the @dojo/widgets/split-pane.Direction.column function in @dojo/widgets

theme.set(dojo);
	}

	return v('div', { classes: css.app }, [
		v('div', { classes: css.toolbarHolder }, [
			w(Toolbar, {
				collapseWidth: 700,
				heading: 'Dojo Widget Showcase'
			})
		]),
		v('div', { classes: css.splitPaneHolder }, [
			w(
				SplitPane,
				{
					key: 'split-pane',
					direction: Direction.column,
					size,
					onResize: (size: number) => {
						icache.set('size', size);
					}
				},
				[w(Accordion, {}), w(Tabs, {})]
			)
		])
	]);
});