declare namespace Ext {
    export namespace draw {
        export interface SurfaceBaseConfig {
            baseCls?: string | boolean;
            bind?: object | string;
            border?: boolean;
            cls?: string | string[];
            controller?: string | object | Ext.app.ViewController;
            defaultListenerScope?: boolean;
            height?: number | string;
            hidden?: boolean;
            listeners?: object;
            plugins?: object | string | object[] | string[];
            publishes?: string | string[] | object;
            reference?: string;
            session?: boolean | object | Ext.data.Session;
            style?: string | object;
            touchAction?: object;
            twoWayBindable?: string | string[] | object;
            ui?: string | string[];
            userCls?: string | string[];
            viewModel?: string | object | Ext.app.ViewModel;
            width?: number | string;
        }

        export class SurfaceBase extends Ext.Widget  {
        }
    }
}