type FrameUpdateFn = (dt: number) => boolean | void;
/**
 * Schedule an update for next frame.
 * Your function can return `true` to repeat next frame.
 */
export declare const raf: {
    (fn: FrameUpdateFn): void;
    now: () => number;
    batchedUpdates(fn: () => void): void;
};
export {};
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