declare namespace Ext {
    export namespace chart {
        export namespace interactions {
            export interface ItemEditConfig {
                chart?: Ext.chart.AbstractChart;
                enabled?: boolean;
                listeners?: object;
                renderer?: string | CallableFunction;
                style?: object;
                tooltip?: object | boolean;
            }

            export class ItemEdit extends Ext.chart.interactions.ItemHighlight  {
                public getRenderer(): void;
                public getStyle(): void;
                public getTooltip(): void;
                public setRenderer(): void;
                public setStyle(): void;
                public setTooltip(): void;
            }
        }
    }
}