declare namespace Ext { export namespace chart { export interface MarkerHolderConfig { } export class MarkerHolder extends Ext.Mixin { public bindMarker(name?: string, marker?: Ext.chart.Markers): void; public getBoundMarker(name?: string): Ext.chart.Markers[]; public getMarker(name?: string): Ext.chart.Markers; public releaseMarker(marker?: string | Ext.chart.Markers): Ext.chart.Markers; } } }