import { Timeout } from './useTimeout';
export declare class Interval extends Timeout {
    static create(): Interval;
    /**
     * Executes `fn` at `delay` interval, clearing any previously scheduled call.
     */
    start(delay: number, fn: Function): void;
    clear: () => void;
}
/**
 * A `setInterval` with automatic cleanup and guard.
 */
export declare function useInterval(): Interval;
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