declare namespace Ext {
    export namespace layout {
        export namespace container {
            export interface AnchorConfig {
                anchor?: string;
                animatePolicy?: object;
                childEls?: object | string[] | object[];
                defaultAnchor?: string;
                itemCls?: string;
                reserveScrollbar?: boolean;
            }

            export class Anchor extends Ext.layout.container.Auto  {
            }
        }
    }
}