export declare const DEFAULT_MATHJAX_URL = "https://cdn.jsdelivr.net/npm/mathjax@3.2.2/es5/tex-svg.js";
interface MathJaxGlobal {
    tex2svgPromise?: (tex: string, options?: Record<string, unknown>) => Promise<HTMLElement>;
    tex2chtmlPromise?: (tex: string, options?: Record<string, unknown>) => Promise<HTMLElement>;
    svgStylesheet?: () => HTMLStyleElement;
    chtmlStylesheet?: () => HTMLStyleElement;
    startup?: {
        promise?: Promise<unknown>;
        typeset?: boolean;
    };
}
/** Load MathJax once per URL, reusing whatever the host page already has. */
export declare function loadMathJax(url?: string): Promise<MathJaxGlobal>;
/** Render one TeX expression to a detached node ready to be adopted into a
 * shadow root. Falls back to CHTML when the page's MathJax has no SVG output. */
export declare function renderTex(mathJax: MathJaxGlobal, tex: string, display: boolean): Promise<HTMLElement>;
/**
 * MathJax keeps its rules in a stylesheet it appends to the main document,
 * which never reaches shadow DOM. Copy the current version in — it grows as
 * new constructs are typeset, so it is re-synced on every render.
 */
export declare function syncMathJaxStyles(root: ShadowRoot, mathJax: MathJaxGlobal): void;
export {};