import Looper = require('./Looper');
/**
 * This Looper uses the setInterval/clearInterval API as its implementation.
 *
 * The interval at which the function is called is set to {@see TIMEOUT_60_FPS_IN_MS}
 *
 * If a window is hidden then most browsers will limit the rate of invocation of this Looper to once every second.
 */
declare class TimeoutLooper implements Looper.Looper {
    private cb;
    private handle;
    /**
     * Create a setInterval-based Looper that will invoke the given callback.
     *
     * If the callback returns false, the Looper will cancel any future invocations.
     *
     * @param {Function} cb callback that will be invoked by this looper.
     */
    constructor(cb: () => boolean);
    start(): void;
    stop(): void;
    isRunning(): boolean;
}
export = TimeoutLooper;