type MermaidAPI = {
    initialize: (config: Record<string, unknown>) => void;
    render: (id: string, code: string) => Promise<{
        svg: string;
    }>;
};
type DOMPurifyAPI = {
    sanitize: (dirty: string, config?: Record<string, unknown>) => string;
};
export declare class MermaidRenderSuperseded extends Error {
    constructor();
}
export declare const isMermaidRenderSuperseded: (err: unknown) => boolean;
/**
 * Diagram type. Set here, not per diagram: mermaid's directive sanitizer
 * keeps only a single bare family name in `themeVariables.fontFamily`
 * (stacks, quotes and even `sans-serif` are dropped), whereas the initialize
 * config takes the full stack. Inter is the embed's shipped body face and is
 * inlined into image renders by `renderMermaidForImage`.
 */
export declare const MERMAID_FONT_FAMILY = "Inter, \"Segoe UI\", Roboto, Helvetica, Arial, sans-serif";
export declare const whenMermaidReady: () => Promise<[MermaidAPI, DOMPurifyAPI]>;
export declare const prefetchMermaid: () => void;
export declare const isMermaidReady: () => boolean;
export declare const renderMermaid: (code: string, key?: string) => Promise<string>;
/**
 * Diagram SVG for `<img>`/canvas consumers (thumbnails, export): the same
 * markup with the web fonts it names inlined, since an SVG drawn as an image
 * cannot reach the page's `@font-face` rules and would fall back to serif.
 */
export declare const renderMermaidForImage: (code: string, key?: string) => Promise<string>;
export {};