/** The multi-root editor UI class. */
export default class MultirootEditorUI extends EditorUI {
    /**
     * Creates an instance of the multi-root editor UI class.
     *
     * @param {module:core/editor/editor~Editor} editor The editor instance.
     * @param {module:ui/editorui/editoruiview~EditorUIView} view The view of the UI.
     */
    constructor(editor: any, view: any);
    lastFocusedEditableElement: any;
    /**
     * The main (top–most) view of the editor UI.
     *
     * @readonly
     * @member {module:ui/editorui/editoruiview~EditorUIView} #view
     */
    readonly view: any;
    /**
     * A normalized `config.toolbar` object.
     *
     * @type {Object}
     * @private
     */
    private _toolbarConfig;
    /**
     * Initializes the UI.
     */
    init(): void;
    createEditableView(rootName: any, sourceElement: any): void;
    removeEditableView(rootName: any): void;
    setPlaceholder(rootName: any, placeholderText: any): void;
    initEditableView(editable: any): void;
    /**
     * Enable the placeholder text on the editing root, if any was configured.
     *
     * @private
     */
    private initPlaceholder;
    /**
     * Initializes the editor main toolbar and its panel.
     *
     * @private
     */
    private initToolbar;
}
import { EditorUI } from "@ckeditor/ckeditor5-ui";
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