declare namespace Ext {
    export namespace mixin {
        export interface PluggableConfig {
            plugins?: object | string | object[] | string[];
        }

        export class Pluggable extends Ext.Base  {
            public addPlugin(plugin?: object | string | Ext.plugin.Abstract): void;
            public destroyPlugin(plugin?: string | Ext.plugin.Abstract): Ext.plugin.Abstract;
            public findPlugin(type?: string): Ext.plugin.Abstract;
            public getPlugin(id?: string): Ext.plugin.Abstract;
            public getPlugins(): void;
            public removePlugin(plugin?: string | Ext.plugin.Abstract, destroy?: boolean): Ext.plugin.Abstract;
            public setPlugins(): void;
        }
    }
}