declare namespace Ext {
    export namespace resizer {
        export interface ResizerConfig {
            constrainTo?: Ext.dom.Element | Ext.util.Region;
            dynamic?: boolean;
            handles?: string;
            height?: number;
            heightIncrement?: number;
            listeners?: object;
            maxHeight?: number;
            maxWidth?: number;
            minHeight?: number;
            minWidth?: number;
            pinned?: boolean;
            preserveRatio?: boolean;
            target?: Ext.dom.Element | Ext.Component;
            transparent?: boolean;
            width?: number;
            widthIncrement?: number;
        }

        export class Resizer extends Ext.Base  {
            public el?: Ext.dom.Element;
            public originalTarget?: Ext.dom.Element | Ext.Component;
            public resizeTracker?: Ext.resizer.ResizeTracker;
            public getEl(): Ext.dom.Element;
            public getTarget(): void;
            public resizeTo(width?: number, height?: number): void;
        }
    }
}