/**
 * @file
 *
 * Pure derivation of the ECMAScript language level supported by a given
 * Chromium (V8) version, expressed as an ECMAScript-edition string (e.g. `'ES2022'`).
 *
 * A serialized `evalInObsidian` closure runs in Obsidian's Chromium renderer, so
 * the ES features it may safely use are bounded by that shell's Chromium version.
 * The empirically-collected `runtimeVersions.chrome` (see
 * {@link ObsidianRuntimeVersions} and `scripts/collect-runtime-versions.ts`) is
 * fed through {@link deriveEcmaScriptVersion} to bake a per-version
 * `ecmaScriptVersion` into `metadata.json`, so a consumer pinning an installer can
 * tell offline which ES level is safe.
 *
 * The Chromium-major → ES-year breakpoints below are the Chromium releases at
 * which each yearly ECMAScript edition became fully supported, per MDN /
 * caniuse / the ECMAScript compatibility tables. They are a curated table, not
 * derived from anything else, so this module is pure and unit-tested to the 100% gate.
 */
/**
 * Derives the highest fully-supported ECMAScript edition for a Chromium version.
 *
 * @param chromeVersion - A Chromium version string (e.g. `'114.0.5735.289'`);
 *   only the leading major segment is significant.
 * @returns The ECMAScript-edition label (e.g. `'ES2022'`), or `undefined` when the
 *   version cannot be parsed or its Chromium major predates the earliest tracked edition.
 */
export declare function deriveEcmaScriptVersion(chromeVersion: string): string | undefined;