/**
 * <px-flipcard> — turns over to show its second face.
 *
 * The turn itself is CSS on the [flipped] attribute; this element only makes
 * it operable and announced, so the card still works with your own toggle.
 */
export declare class PxFlipcard extends HTMLElement {
    #private;
    connectedCallback(): void;
    disconnectedCallback(): void;
    get flipped(): boolean;
    set flipped(value: boolean);
    toggle: () => void;
}