How to use the snabbdom/tovnode.toVNode function in snabbdom

firstRoot =>
          xs
            .merge(rememberedVNode$.endWhen(sanitation$), sanitation$)
            .map(vnode => vnodeWrapper.call(vnode))
            .startWith(addRootScope(toVNode(firstRoot)))
            .fold(patch, toVNode(firstRoot))
            .drop(1)
            .map(unwrapElementFromVNode)
            .startWith(firstRoot as any)
            .map(el => {
              mutationObserver.observe(el, {
                childList: true,
                attributes: true,
                characterData: true,
                subtree: true,
                attributeOldValue: true,
                characterDataOldValue: true,
              });
              return el;
            })
            .compose(dropCompletion) // don't complete this stream

firstRoot =>
          xs
            .merge(rememberedVNode$.endWhen(sanitation$), sanitation$)
            .map(vnode => vnodeWrapper.call(vnode))
            .startWith(addRootScope(toVNode(firstRoot)))
            .fold(patch, toVNode(firstRoot))
            .drop(1)
            .map(unwrapElementFromVNode)
            .startWith(firstRoot as any)
            .map(el => {
              mutationObserver.observe(el, {
                childList: true,
                attributes: true,
                characterData: true,
                subtree: true,
                attributeOldValue: true,
                characterDataOldValue: true,
              });
              return el;
            })
            .compose(dropCompletion) // don't complete this stream
      )

export default function injectUI(streamContainer: Element) {
	var nfeContainer = document.createElement('div');
	nfeContainer.id = 'nfe-container';
	streamContainer.appendChild(nfeContainer);

	const patch = init([propsModule, attrsModule, eventsModule]);

	let vnode = toVNode(nfeContainer);

	storePromise
		.then(store => {
			const render = () => {
				const newVnode = h('div#nfe-container', [NewsFeedEradicator(store)]);

				patch(vnode, newVnode);
				vnode = newVnode;
			};

			render();
			store.subscribe(render);
		})
		.catch(handleError);
}