/**
 * MIME type lookup table for file sending.
 * Superset of WhatsApp and Telegram MIME maps.
 */
export declare const MIME_MAP: Record<string, string>;
/**
 * Look up MIME type for a file extension.
 * Falls back to "application/octet-stream" for unknown extensions.
 */
export declare function lookupMime(ext: string): string;
/**
 * The extension a MIME type should be saved under, WITHOUT a leading dot.
 *
 * The reverse direction needs to exist here rather than at each call site. Both
 * places that had their own answer got it wrong in the same way: a short list of
 * types they had thought about, and `bin` for everything else — so a video
 * arrived as `.bin`, unplayable until renamed by hand. A table that already
 * knows every type it accepts should also know what to call it on the way back.
 *
 * Falls back to `bin`, which is honest for a type nothing here recognises.
 */
export declare function extForMime(mime: string): string;
//# sourceMappingURL=mime.d.ts.map