declare namespace Ext {
    export namespace layout {
        export namespace container {
            export interface CardConfig {
                animatePolicy?: object;
                childEls?: object | string[] | object[];
                deferredRender?: boolean;
                itemCls?: string;
            }

            export class Card extends Ext.layout.container.Fit  {
                public getActiveItem(): Ext.Component;
                public getNext(): Ext.Component;
                public getPrev(): Ext.Component;
                public next(): Ext.Component;
                public prev(): Ext.Component;
                public setActiveItem(newCard?: Ext.Component | number | string): Ext.Component;
            }
        }
    }
}