/**-----------------------------------------------------------------------------------------
* Copyright © 2025 Progress Software Corporation. All rights reserved.
* Licensed under commercial license. See LICENSE.md in the project root for more information
*-------------------------------------------------------------------------------------------*/
import { CheckedState } from './checkbox/checked-state';
import { TrackByFunction } from '@angular/core';
/**
 * @hidden
 */
export declare const hasChildren: (item: object) => boolean;
/**
 * @hidden
 */
export declare const isChecked: (item: object, index: string) => CheckedState;
/**
 * @hidden
 */
export declare const isDisabled: (item: object, index: string) => boolean;
/**
 * @hidden
 */
export declare const hasCheckbox: (item: object, index: string) => boolean;
/**
 * @hidden
 */
export declare const isExpanded: (item: object, index: string) => boolean;
/**
 * @hidden
 */
export declare const isSelected: (item: object, index: string) => boolean;
/**
 * @hidden
 */
export declare const isVisible: (item: object, index: string) => boolean;
/**
 * @hidden
 */
export declare const trackBy: TrackByFunction<object>;