export type AnchorOpts = {
    icon: string;
    visible: 'hover' | 'always' | 'touch';
    placement: 'right' | 'left';
    ariaLabel: string;
    class: string;
    base: string;
    truncate: number;
    titleText: string;
};
export declare function anchor(opts?: Partial<AnchorOpts>, selector?: string | Array<Node> | NodeList): Anchor;
export declare class Anchor {
    opts: Partial<AnchorOpts>;
    els: HTMLElement[];
    constructor(opts?: Partial<AnchorOpts>);
    /**
     * Assign options to the internal options object, and provide defaults.
     * @param {AnchorOpts} opts - Options object. This will be mutated.
     */
    private _applyRemainingDefaultOptions;
    /**
     * Check to see if this device supports touch. Uses criteria pulled
     * from Modernizr:
     * https://github.com/Modernizr/Modernizr/blob/da22eb27631fc4957f67607fe6042e85c0a84656/feature-detects/touchevents.js#L40
     *
     * @return {boolean} - true if the current device supports touch.
     */
    isTouchDevice(): boolean;
    /**
     * Determine if this element already has an AnchorJS link on it.
     * Uses this technique: https://stackoverflow.com/a/5898748/1154642
     * @param    {HTMLElement}  el - a DOM node
     * @return   {Boolean}     true/false
     */
    hasAnchorJSLink(el: HTMLElement): boolean;
    /**
     * Urlify - Refine text so it makes a good ID.
     *
     * To do this, we remove apostrophes, replace non-safe characters
     * with hyphens, remove extra hyphens, truncate, trim hyphens, and
     * make lowercase.
     *
     * @param  {string} text - Any text. Usually pulled from the webpage element
     *   we are linking to.
     * @return {string} - hyphen-delimited text for use in IDs and URLs.
     */
    urlify(text: string): string;
    /**
     * Add anchor links to page elements.
     *
     * @param  {string|Array<Node>|NodeList} [selector] - A CSS selector for targeting
     * the elements you wish to add anchor links to. Also accepts an array or
     * nodeList containing the relavant elements.
     * @return {this}
     */
    add(selector?: string | Array<Node> | NodeList): this;
    /**
     * Remove all anchorjs-links from elements targeted by the selector.
     *
     * @param  {string|Array|Nodelist} selector - A CSS selector string
     *   targeting elements with anchor links,
     *   OR a nodeList / array containing the DOM elements.
     * @return {this} The AnchorJS object
     */
    remove(selector: string | Node[] | NodeList): this;
    /**
     * Remove all anchorjs links. Mostly used for tests.
     */
    removeAll(): void;
}
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