/** Re-exported under a component-scoped name -- what `<lr-markdown>`'s `math` option needs from
*  the optional `katex` peer (`renderToString(tex, options)`). */
export interface KatexApi{renderToString(tex:string,options?:Record<string,unknown>):string;}
/**
* Loads the optional peer dependency `katex`, used by `<lr-markdown>`'s `math` property to
* render `$...$`/`$$...$$` TeX as MathML. Resolves `null` with a one-time development diagnostic
* if the peer isn't installed -- rendering falls back to the literal, unparsed TeX source in that
* case, a fully supported default rather than a degraded mode. Mirrors `dompurify-loader.ts`'s
* single-optional-peer shape.
*/
export declare function loadKatex(importKatex?:()=>Promise<unknown>):Promise<KatexApi|null>;
/**
* Lazily loads `katex` once per page, caching the resolved module (or `null`) across every
* `<lr-markdown>` instance -- mirrors `markdown-loader.ts`'s `loadMarkdownDeps()`/
* `getMarkdownDepsIfLoaded()` cached-promise shape for a single optional peer.
*/
export declare function getKatex(importKatex?:()=>Promise<unknown>):Promise<KatexApi|null>;