export type AnnotationType = 'line' | 'band' | 'text' | 'arrow' | 'circle';
export interface ChartAnnotation {
    type: AnnotationType;
    axis?: 'x' | 'y';
    value?: number;
    from?: number;
    to?: number;
    text?: string;
    x?: number;
    y?: number;
    fromPoint?: {
        x: number;
        y: number;
    };
    toPoint?: {
        x: number;
        y: number;
    };
    radius?: number;
    color?: string;
    opacity?: number;
    strokeDasharray?: string;
    fontSize?: number;
    fontWeight?: string;
}
export declare function renderAnnotationSvg(annotation: ChartAnnotation, xScale: (val: number) => number, yScale: (val: number) => number, innerW: number, innerH: number): string;