declare namespace Ext {
    export namespace grid {
        export namespace plugin {
            export interface DragDropConfig {
                allowCopy?: boolean;
                containerScroll?: object | boolean;
                copy?: boolean;
                ddGroup?: string;
                dragGroup?: string;
                dragText?: string;
                dragZone?: object;
                dropGroup?: string;
                dropZone?: object;
                enableDrag?: boolean;
                enableDrop?: boolean;
                id?: string;
                pluginId?: string;
                stateEvents?: string | [];
            }

            export class DragDrop extends Ext.plugin.Abstract  {
                public dragZone?: Ext.view.DragZone;
                public dropZone?: Ext.grid.ViewDropZone;
            }
        }
    }
}