/**
 * Vietnamese (Vietnam) language converter
 *
 * CLDR: vi-VN | Vietnamese as used in Vietnam
 *
 * Vietnamese-specific rules:
 * - Special pronunciation: "lăm" for 5 in tens position, "mốt" for final 1
 * - "Lẻ" (odd/extra) marker when tens place is zero after hundreds/scales
 * - Short scale system with Vietnamese words (nghìn, triệu, tỷ)
 */
export declare const cardinalMax: bigint;
export declare const ordinalMax: bigint;
export declare const currencyMax: bigint;
/**
 * Converts a numeric value to Vietnamese words.
 *
 * This is the main public API. It accepts any valid numeric input
 * (number, string, or bigint) and handles parsing internally.
 * @param {number | string | bigint} value - The numeric value to convert
 * @returns {string} The number in Vietnamese words
 * @throws {TypeError} If value is not a valid numeric type
 * @throws {Error} If value is not a valid number format
 * @example
 * toCardinal(42)           // 'bốn mươi hai'
 * toCardinal(101)          // 'một trăm lẻ một'
 * toCardinal(1000000)      // 'một triệu'
 */
declare function toCardinal(value: number | string | bigint): string;
/**
 * Converts a numeric value to Vietnamese ordinal words.
 * @param {number | string | bigint} value - The numeric value to convert (positive integer)
 * @returns {string} The number as ordinal words
 * @throws {TypeError} If value is not a valid numeric type
 * @throws {RangeError} If value is negative, zero, or has a decimal part
 * @example
 * toOrdinal(1)    // 'thứ nhất'
 * toOrdinal(2)    // 'thứ hai'
 * toOrdinal(10)   // 'thứ mười'
 */
declare function toOrdinal(value: number | string | bigint): string;
export type CurrencyOptions = {
    /**
     * - ISO 4217 currency code to name the amount in
     */
    currency?: import('./utils/currency-vocab.js').ViCurrency;
};
/**
 * @typedef {object} CurrencyOptions
 * @property {import('./utils/currency-vocab.js').ViCurrency} [currency] - ISO 4217 currency code to name the amount in
 */
/** @type {Required<CurrencyOptions>} */
export declare const currencyDefaults: Required<CurrencyOptions>;
/** @type {{ currency: ReadonlyArray<Required<CurrencyOptions>['currency']> }} */
export declare const currencyValues: {
    currency: ReadonlyArray<Required<CurrencyOptions>['currency']>;
};
/**
 * Converts a numeric value to Vietnamese currency words (Dong).
 *
 * Vietnamese Dong has no everyday subunit (xu are historical) — a
 * fractional amount throws RangeError rather than being silently rounded
 * away.
 * @param {number | string | bigint} value - The currency amount to convert
 * @param {CurrencyOptions} [options] - Optional configuration
 * @returns {string} The amount in Vietnamese currency words
 * @throws {TypeError} If value is not a valid numeric type
 * @throws {RangeError} If value is not a valid number format, or has a fractional part
 * @example
 * toCurrency(42)     // 'bốn mươi hai đồng'
 * toCurrency(1000)   // 'một nghìn đồng'
 * toCurrency(-5)     // 'âm năm đồng'
 */
declare function toCurrency(value: number | string | bigint, options?: CurrencyOptions): string;
export { toCardinal, toOrdinal, toCurrency };