import { type ReactNode } from 'react';
export type HtmdxMermaidOptions = boolean | {
    src?: string;
};
export declare const DEFAULT_MERMAID_SRC = "https://cdn.jsdelivr.net/npm/mermaid@11/dist/mermaid.esm.min.mjs";
type Diagram = {
    svg: ReactNode;
    css: string;
};
/** Applies `register({ mermaid })`. Called before any diagram mounts. */
export declare function configureMermaid(options?: HtmdxMermaidOptions): void;
export declare function MermaidDiagram({ source: diagramSource }: {
    source: string;
}): import("react").FunctionComponentElement<import("./CodeBlock").CodeBlockProps> | import("react").DetailedReactHTMLElement<{
    className: string;
}, HTMLElement>;
export declare function svgToDiagram(svg: string): Diagram;
export declare function safeCss(css: string): string;
export {};