Animation = function (options) {

    options = options || {};

    this.stage = options.stage || {};

    this.onframe = options.onframe || function () {};

    // private properties
    this._clips = [];

    this._running = false;

    this._time;

    this._pausedTime;

    this._pauseStart;

    this._paused = false;

    Eventful.call(this);
}
Delete animation clip
@param {module:zrender/animation/Animator} animator