/**
 * Converts a numeric value to Russian words.
 *
 * @param {number | string | bigint} value - The numeric value to convert
 * @param {Object} [options] - Optional configuration
 * @param {('masculine'|'feminine')} [options.gender='masculine'] - Grammatical gender
 * @returns {string} The number in Russian words
 */
export function toCardinal(value: number | string | bigint, options?: {
    gender?: "masculine" | "feminine" | undefined;
}): string;
/**
 * Converts a numeric value to Russian ordinal words (masculine nominative).
 *
 * @param {number | string | bigint} value - The numeric value to convert (must be a positive integer)
 * @returns {string} The number as ordinal words (e.g., "первый", "сорок второй")
 * @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)    // 'первый'
 * toOrdinal(2)    // 'второй'
 * toOrdinal(3)    // 'третий'
 * toOrdinal(21)   // 'двадцать первый'
 * toOrdinal(42)   // 'сорок второй'
 * toOrdinal(100)  // 'сотый'
 * toOrdinal(101)  // 'сто первый'
 * toOrdinal(1000) // 'тысячный'
 */
export function toOrdinal(value: number | string | bigint): string;
/**
 * Converts a numeric value to Russian currency words (Russian Ruble).
 *
 * @param {number | string | bigint} value - The currency amount to convert
 * @param {Object} [options] - Optional configuration
 * @param {boolean} [options.and=true] - Use "и" between rubles and kopecks
 * @returns {string} The amount in Russian 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)                    // 'сорок два рубля и пятьдесят копеек'
 * toCurrency(1)                        // 'один рубль'
 * toCurrency(0.99)                     // 'девяносто девять копеек'
 * toCurrency(0.01)                     // 'одна копейка'
 * toCurrency(42.50, { and: false })    // 'сорок два рубля пятьдесят копеек'
 */
export function toCurrency(value: number | string | bigint, options?: {
    and?: boolean | undefined;
}): string;