/**
 * <px-avatar> — sprite-sheet mascot, bring your own character.
 *
 * Playback lives in CSS (see components/avatar.css); this element only
 * validates attributes and maps them onto the custom properties that drive it.
 * Light DOM on purpose: page CSS styles it like any other papercade component.
 *
 * <px-avatar src="hero.webp" frames="6" rows="2" row="1" fps="10" alt="Hero"></px-avatar>
 */
export declare class PxAvatar extends HTMLElement {
    #private;
    static readonly observedAttributes: readonly string[];
    connectedCallback(): void;
    attributeChangedCallback(): void;
    /** Resume the walk cycle. */
    play(): void;
    /** Hold the first frame — the idle pose. */
    pause(): void;
    get playing(): boolean;
}