import { Renderable, TNode } from '../types/domain';
/**
 * Renders the given `node` into a DOM element selected by the provided `selector`.
 * Throws an error if the element cannot be found.
 *
 * @param selector - The CSS selector for the target DOM element.
 * @param node - The node to be rendered.
 * @param ctx - The DOM context.
 * @returns The result of rendering the `node` into the selected DOM element.
 * @public
 */
export declare const Portal: (selector: string | HTMLElement, node: TNode) => Renderable;