declare namespace Ext {
    export namespace chart {
        export namespace axis {
            export interface NumericConfig {
                adjustByMajorUnit?: boolean;
                background?: object;
                chart?: Ext.chart.AbstractChart;
                fields?: [];
                floating?: number | object;
                grid?: object;
                hidden?: boolean;
                increment?: number;
                label?: object;
                labelInSpan?: boolean;
                layout?: object | Ext.chart.axis.layout.Layout;
                limits?: object | [];
                linkedTo?: Ext.chart.axis.Axis | string | number;
                listeners?: object;
                majorTickSteps?: number;
                margin?: number;
                maximum?: number;
                maxZoom?: number;
                minimum?: number;
                minorTickSteps?: number;
                minZoom?: number;
                needHighPrecision?: boolean;
                position?: string;
                reconcileRange?: boolean;
                renderer?: CallableFunction;
                segmenter?: object | Ext.chart.axis.segmenter.Segmenter;
                style?: object;
                title?: string | object;
                titleMargin?: number;
                visibleRange?: [];
            }

            export class Numeric extends Ext.chart.axis.Axis  {
            }
        }
    }
}