import { LitElement } from 'lit';
import { handleControlChange } from '../../base/mixins/attachable.js';
declare const M3FocusRing_base: Constructor<import("../../base/mixins/attachable.js").AttachableInterface> & Constructor<import("../../base/mixins/internals-attached.js").InternalsAttachedInterface> & typeof LitElement;
/**
 * @tag md-focus-ring
 *
 * @cssprop --md-focus-ring-active-width
 * @cssprop --md-focus-ring-color
 * @cssprop --md-focus-ring-duration
 * @cssprop --md-focus-ring-inward-offset
 * @cssprop --md-focus-ring-outward-offset
 * @cssprop --md-focus-ring-shape
 * @cssprop --md-focus-ring-shape-end-end
 * @cssprop --md-focus-ring-shape-end-start
 * @cssprop --md-focus-ring-shape-start-end
 * @cssprop --md-focus-ring-shape-start-start
 * @cssprop --md-focus-ring-width
 */
export declare class M3FocusRing extends M3FocusRing_base {
    #private;
    inward: boolean;
    static styles: any[];
    constructor();
    visualFocus(): void;
    visualBlur(): void;
    [handleControlChange](prev?: HTMLElement | null, next?: HTMLElement | null): void;
}
declare global {
    interface HTMLElementTagNameMap {
        'md-focus-ring': M3FocusRing;
    }
}
export {};