declare namespace Ext {
    export namespace mixin {
        export interface KeyboardConfig {
            keyMap?: object;
            keyMapEnabled?: boolean;
            keyMapTarget?: string;
        }

        export class Keyboard extends Ext.Mixin  {
            public getKeyMap(): void;
            public getKeyMapEnabled(): void;
            public initKeyMap(): void;
            public setKeyMap(): void;
            public setKeyMapEnabled(): void;
        }
    }
}