declare namespace Ext {
    export namespace fx {
        export interface AnimatorConfig {
            delay?: number;
            duration?: number;
            dynamic?: boolean;
            easing?: string;
            iterations?: number;
            keyframes?: object;
            listeners?: object;
            target?: Ext.fx.target.Target;
        }

        export class Animator extends Ext.Base  {
            public currentIteration?: number;
            public isAnimator?: boolean;
            public keyframeStep?: number;
            public paused?: boolean;
            public running?: boolean;
            public end(): void;
        }
    }
}