/**
 *
 * useRaf
 * Uses a polyfilled version of requestAnimationFrame
 *
 * @param {Function} callback The callback function to be executed
 * @param {boolean} [isActive] The value which while true, keeps the raf running infinitely
 * @see https://rooks.vercel.app/docs/useRaf
 */
export declare function useRaf(callback: (timeElapsed: number) => void, isActive: boolean): void;
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