/**
 * @license Copyright (c) 2003-2026, CKSource Holding sp. z o.o. All rights reserved.
 * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-licensing-options
 */
import type { ToolbarConfig, ToolbarConfigItem } from '@ckeditor/ckeditor5-core';
/**
 * @module ui/toolbar/normalizetoolbarconfig
 */
/**
 * Normalizes the toolbar configuration (`config.toolbar`), which:
 *
 * * may be defined as an `Array`:
 *
 * ```
 * toolbar: [ 'heading', 'bold', 'italic', 'link', ... ]
 * ```
 *
 * * or an `Object`:
 *
 * ```
 * toolbar: {
 * 	items: [ 'heading', 'bold', 'italic', 'link', ... ],
 * 	removeItems: [ 'bold' ],
 * 	...
 * }
 * ```
 *
 * * or may not be defined at all (`undefined`)
 *
 * and returns it in the object form.
 *
 * @param config The value of `config.toolbar`.
 * @returns A normalized toolbar config object.
 */
export declare function normalizeToolbarConfig(config: ToolbarConfig | undefined): {
    items: Array<ToolbarConfigItem>;
    removeItems: Array<string>;
    shouldNotGroupWhenFull?: boolean;
    icon?: string;
};