declare namespace Ext {
    export interface ClassConfig {
        alias?: string | string[];
        alternateClassName?: string | string[];
        cachedConfig?: object;
        config?: object;
        eventedConfig?: object;
        extend?: string;
        inheritableStatics?: object;
        mixins?: string[] | object;
        override?: string;
        platformConfig?: object;
        privates?: object;
        requires?: string[];
        singleton?: boolean;
        statics?: object;
        uses?: string[];
        xtype?: string;
    }

    export class Class   {
        public constructor(Class?: object, data?: object, onCreated?: CallableFunction);
    }
}