declare namespace Ext {
    export interface ZIndexManagerConfig {
    }

    export class ZIndexManager extends Ext.Base  {
        public bringToFront(comp?: string | object, preventFocus?: boolean): boolean;
        public each(fn?: CallableFunction, scope?: object): void;
        public eachBottomUp(fn?: CallableFunction, scope?: object): void;
        public eachTopDown(fn?: CallableFunction, scope?: object): void;
        public get(id?: string | object): Ext.Component;
        public getActive(): Ext.Component;
        public getBy(fn?: CallableFunction, scope?: object): [];
        public hideAll(): void;
        public register(comp?: Ext.Component): void;
        public sendToBack(comp?: string | object): Ext.Component;
        public unregister(comp?: Ext.Component): void;
    }
}