import { type ReactNode } from 'react';
import { AnnotationsMarkerConfig } from '../types/annotations-marker-props.js';
export declare const defineMarkerContent: (markers: AnnotationsMarkerConfig[]) => string | boolean | import("react").ReactElement<any, string | import("react").JSXElementConstructor<any>> | Iterable<ReactNode> | import("react").ReactPortal | null;