declare namespace Ext {
    export namespace chart {
        export namespace interactions {
            export interface CrosshairConfig {
                axes?: object;
                chart?: Ext.chart.AbstractChart;
                enabled?: boolean;
                gesture?: string;
                lines?: object;
                listeners?: object;
            }

            export class Crosshair extends Ext.chart.interactions.Abstract  {
                public getAxes(): void;
                public getGesture(): void;
                public getLines(): void;
                public setAxes(): void;
                public setGesture(): void;
                public setLines(): void;
            }
        }
    }
}