/**
 * Parses a number string and returns the best possible javascript number.
 * For edge cases it may use locale to give the best possible assumption.
 *
 * It has 3 "methods" of returning numbers
 * - 'unparseable': becomes just numbers
 * - 'withLocale': result depends on given or global locale
 * - 'heuristic': result depends on considering separators
 *
 * @example
 * parseNumber('1.234.567'); // method: unparseable => 1234567
 * parseNumber('1.234'); // method: withLocale => depending on locale 1234 or 1.234
 * parseNumber('1.234,56'); // method: heuristic => 1234.56
 * parseNumber('1 234.56'); // method: heuristic => 1234.56
 * parseNumber('1,234.56'); // method: heuristic => 1234.56
 *
 * @param {string} value Number to be parsed
 * @param {import('../../types/LocalizeMixinTypes').FormatNumberOptions} [options] Locale Options
 */
export function parseNumber(value: string, options?: import("../../types/LocalizeMixinTypes").FormatNumberOptions | undefined): number | undefined;