/**
 * Inline implementation of the `mime-types` module surface veryfront uses.
 *
 * API-compatible with the MIT-licensed `mime-types` npm package — this is a
 * clean-room rewrite against the public API; no source was copied. MIME
 * values are IANA-assigned identifiers (not copyrightable).
 *
 * Replaces the npm `mime-types` dep per spec §8.3 with a static lookup table.
 * Covers the extensions veryfront serves internally (web assets, fonts, MDX,
 * WASM, source maps) plus the common upload formats users pass to the
 * `veryfront uploads` CLI — CSV, ZIP archives, office docs, audio/video —
 * so `lookupMimeType()` doesn't silently collapse them to
 * `application/octet-stream`. For unknown extensions `lookup()` still
 * returns `false`, matching the original module's sentinel value.
 */
/**
 * Look up the MIME type for a file path or bare extension. Accepts values
 * with or without a leading dot. Returns `false` when no mapping is known.
 *
 * Uses `Object.hasOwn()` so extensions that collide with inherited props
 * (e.g. `file.toString`, `file.constructor`) return `false` instead of
 * leaking a function / prototype value through the `?? false` fallback.
 */
export declare function lookup(path: string): string | false;
/**
 * Return `"UTF-8"` for MIME types whose payload is text (text/*, JS, JSON).
 * Returns `false` otherwise — matching the original module's sentinel.
 */
export declare function charset(mime: string): string | false;
/**
 * Reverse of `lookup()`: given a MIME type, return a canonical file extension
 * (without leading dot) or `false` when unknown. Uses `Object.hasOwn()` for
 * the same reason `lookup()` does (avoid prototype-property leaks).
 */
export declare function extension(mime: string): string | false;
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