declare namespace Ext {
    export namespace grid {
        export namespace plugin {
            export interface HeaderResizerConfig {
                dynamic?: boolean;
                id?: string;
                pluginId?: string;
                stateEvents?: string | [];
            }

            export class HeaderResizer extends Ext.plugin.Abstract  {
                public getDynamic(): void;
                public setDynamic(): void;
            }
        }
    }
}