declare namespace Ext {
    export namespace draw {
        export namespace sprite {
            export interface ArcConfig {
                animation?: Ext.draw.modifier.Animation;
                anticlockwise?: boolean;
                cx?: number;
                cy?: number;
                endAngle?: number;
                fillOpacity?: number;
                fillStyle?: string;
                globalAlpha?: number;
                globalCompositeOperation?: string;
                hidden?: boolean;
                lineCap?: string;
                lineDash?: [];
                lineDashOffset?: number;
                lineJoin?: string;
                lineWidth?: number;
                listeners?: object;
                miterLimit?: number;
                path?: string;
                r?: number;
                rotation?: number | object;
                rotationCenterX?: number;
                rotationCenterY?: number;
                rotationRads?: number;
                scaling?: number | object;
                scalingCenterX?: number;
                scalingCenterY?: number;
                scalingX?: number;
                scalingY?: number;
                shadowBlur?: number;
                shadowColor?: string;
                shadowOffsetX?: number;
                shadowOffsetY?: number;
                startAngle?: number;
                strokeOpacity?: number;
                strokeStyle?: string;
                transformFillStroke?: boolean;
                translation?: object;
                translationX?: number;
                translationY?: number;
                zIndex?: number;
            }

            export class Arc extends Ext.draw.sprite.Circle  {
            }
        }
    }
}