export default class DocumentData extends AccessibilityObject {
    /**
     * Sets whether the document is expanded or collapsed.  If the document is not
     * expandable, then this should be set to undefined.
     * @access public
     * @param {boolean} val - true if the document is expanded, false if it is
     * collapsed, undefined if the document is not expandable
     */
    set expanded(arg: boolean);
    /**
     * Retrieves whether the document is expanded, collapsed, or not expandable.
     * @access public
     * @returns {boolean} - true if the document is expanded, false if the document
     * is collapsed, undefined if it is not expandable
     */
    get expanded(): boolean;
}
import AccessibilityObject from "./AccessibilityObject";