import type { ManifestElement, ManifestElementAndApi } from '../types/base.types.js';
/**
 * Creates an element instance from a manifest.
 * @template {HTMLElement} ElementType
 * @param {ManifestElement<ElementType> | ManifestElementAndApi<any>} manifest The manifest to create the element from.
 * @param {string} [fallbackElement] An element tag name to fall back to if the manifest does not provide one.
 * @returns {Promise<ElementType | undefined>} The created element, if successful.
 */
export declare function createExtensionElement<ElementType extends HTMLElement>(manifest: ManifestElement<ElementType> | ManifestElementAndApi<any>, fallbackElement?: string): Promise<ElementType | undefined>;