/**
 * Shared animation clock for sprite frame cycling.
 *
 * Lazily starts on first subscriber, stops when the last unsubscribes.
 * Timer is unref'd so it never prevents process exit.
 */
export type TickFn = (frame: number) => void;
export interface Animator {
    subscribe: (fn: TickFn) => () => void;
    stop: () => void;
}
export declare function createAnimator(intervalMs?: number): Animator;
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