/**
 * Spanish (United States) language converter
 *
 * CLDR: es-US | Spanish as used in the United States
 *
 * Uses the short scale numbering system (like US English):
 * - 10⁶ = millón
 * - 10⁹ = billón (billion)
 * - 10¹² = trillón (trillion)
 *
 * Spanish-specific rules:
 * - Gender agreement: uno/una, veintiuno/veintiuna, hundreds
 * - Special twenties: veinte, veintiuno, veintidós, ... veintinueve
 * - "y" conjunction: treinta y uno (only 30-99 with ones)
 * - "cien" for exact 100, "ciento/cienta" otherwise
 * - Irregular hundreds: quinientos, setecientos, novecientos
 * - "un" before millón (not "uno"), omit before mil
 */
export declare const cardinalMax: bigint;
export declare const ordinalMax: bigint;
export declare const currencyMax: bigint;
export type CardinalOptions = {
    /**
     * - Grammatical gender
     */
    gender?: ('masculine' | 'feminine');
};
/**
 * @typedef {object} CardinalOptions
 * @property {('masculine'|'feminine')} [gender] - Grammatical gender
 */
/** @type {Required<CardinalOptions>} */
export declare const cardinalDefaults: Required<CardinalOptions>;
/** @type {{ gender: ReadonlyArray<Required<CardinalOptions>['gender']> }} */
export declare const cardinalValues: {
    gender: ReadonlyArray<Required<CardinalOptions>['gender']>;
};
/**
 * Converts a numeric value to Spanish words (US short scale).
 * @param {number | string | bigint} value - The numeric value to convert
 * @param {CardinalOptions} [options] - Optional configuration
 * @returns {string} The number in Spanish words
 * @throws {TypeError} If value is not a valid numeric type
 * @throws {Error} If value is not a valid number format
 * @example
 * toCardinal(21)                        // 'veintiuno'
 * toCardinal(21, {gender: 'feminine'})  // 'veintiuna'
 * toCardinal(1000000000)                // 'un billón'
 */
declare function toCardinal(value: number | string | bigint, options?: CardinalOptions): string;
export type OrdinalOptions = {
    /**
     * - Grammatical gender
     */
    gender?: ('masculine' | 'feminine');
};
/**
 * @typedef {object} OrdinalOptions
 * @property {('masculine'|'feminine')} [gender] - Grammatical gender
 */
/** @type {Required<OrdinalOptions>} */
export declare const ordinalDefaults: Required<OrdinalOptions>;
/** @type {{ gender: ReadonlyArray<Required<OrdinalOptions>['gender']> }} */
export declare const ordinalValues: {
    gender: ReadonlyArray<Required<OrdinalOptions>['gender']>;
};
/**
 * Converts a numeric value to Spanish ordinal words.
 * @param {number | string | bigint} value - The positive integer to convert
 * @param {OrdinalOptions} [options] - Optional configuration
 * @returns {string} The number in Spanish ordinal words
 * @throws {TypeError} If value is not a valid numeric type
 * @throws {Error} If value is not a positive integer
 * @example
 * toOrdinal(1)                          // 'primero'
 * toOrdinal(1, { gender: 'feminine' })  // 'primera'
 * toOrdinal(21)                         // 'vigésimo primero'
 */
declare function toOrdinal(value: number | string | bigint, options?: OrdinalOptions): string;
export type CurrencyOptions = {
    /**
     * - Use "con" between dollars and cents
     */
    and?: boolean;
};
/**
 * @typedef {object} CurrencyOptions
 * @property {boolean} [and] - Use "con" between dollars and cents
 */
/** @type {Required<CurrencyOptions>} */
export declare const currencyDefaults: Required<CurrencyOptions>;
/**
 * Converts a numeric value to US Dollar currency words in Spanish.
 *
 * US Dollar uses masculine gender for dólares (el dólar)
 * and masculine for centavos (el centavo).
 * @param {number | string | bigint} value - The currency amount to convert
 * @param {CurrencyOptions} [options] - Optional configuration
 * @returns {string} The amount in Spanish US Dollar currency words
 * @throws {TypeError} If value is not a valid numeric type
 * @throws {Error} If value is not a valid number format
 * @example
 * toCurrency(42.50)                  // 'cuarenta y dos dólares con cincuenta centavos'
 * toCurrency(1)                      // 'un dólar'
 * toCurrency(0.99)                   // 'noventa y nueve centavos'
 * toCurrency(42.50, { and: false })  // 'cuarenta y dos dólares cincuenta centavos'
 */
declare function toCurrency(value: number | string | bigint, options?: CurrencyOptions): string;
export { toCardinal, toOrdinal, toCurrency };