export const HTML: import("nonchalance/ce").HTML;
export const SVG: import("nonchalance/ce").SVG;
export namespace elements {
    /**
     * @param {string} name
     * @param {CustomElementConstructor} constructor
     * @returns
     */
    function define(name: string, constructor: CustomElementConstructor): void;
    function get(name: string): CustomElementConstructor | undefined;
    function whenDefined(name: string): Promise<CustomElementConstructor>;
}