export type AnnotationRenderer = (ctx: {
    annotation: any;
    scaleX: (v: number) => number;
    scaleY: (v: number) => number;
    plotWidth: number;
    plotHeight: number;
}) => any;
export declare function registerAnnotationRenderer(shape: string, renderer: AnnotationRenderer): void;
export declare function getAnnotationRenderer(shape: string): AnnotationRenderer | undefined;
export declare function renderAnnotation(a: any, helpers: Omit<Parameters<AnnotationRenderer>[0], 'annotation'>): any;