import { ClassicEditorSupportConfig } from './types/ClassicEditorSupportConfig';
/**
 * Registers the preview element in one same-origin tinymce editor iframe's
 * customElements registry. Idempotent and silent on cross-origin iframes.
 * @param {HTMLIFrameElement} iframe - The candidate iframe.
 * @param {ClassicEditorSupportConfig} config - The widget's support config.
 * @returns {void}
 */
export declare const registerWidgetInIframe: (iframe: HTMLIFrameElement, config: ClassicEditorSupportConfig) => void;
//# sourceMappingURL=registerWidgetInIframe.d.ts.map