import { ClassicEditorSupportConfig } from './types/ClassicEditorSupportConfig';
/**
 * Opens the widget's configuration form for a placed element. Mounts the form
 * (provided by the widget via config.renderConfigForm) into the top document via
 * the bundle's own React; on submit, writes the edited attributes back onto the
 * element and persists them. A fixed host id guards against stacking dialogs.
 * @param {HTMLElement} element - The placed widget element to configure.
 * @param {ClassicEditorSupportConfig} config - The widget's support config.
 * @returns {void}
 */
export declare const openClassicConfigModal: (element: HTMLElement, config: ClassicEditorSupportConfig) => void;
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