import type { Fn, Pauseable } from "svelteshareds";
export interface RafFnOptions {
    /**
     * Start the requestAnimationFrame loop immediately on creation
     *
     * @default true
     */
    immediate?: boolean;
}
/**
 * Call function on every `requestAnimationFrame`. With controls of pausing and resuming.
 *
 * @param fn
 * @param options
 */
export declare function raf_fn(fn: Fn, options?: RafFnOptions): Pauseable;
export { raf_fn as rafFn };