/**
 * Options for customizing the number-to-words conversion in Polish.
 */
export interface NumberToWordsOptions {
    /**
     * If true, use the informal form of fractional numbers (e.g., "pół" instead of "jedna druga").
     */
    informalFraction?: boolean;
    /**
     * Maximum number (inclusive) for which individual digits are used in informal fractions (e.g., "trzy czwarte").
     * Only relevant if `informalFraction` is true.
     */
    informalFractionFormIndividualNumberThreshold?: number;
    /**
     * If true, attempt to simplify fractions (e.g., 2/4 becomes 1/2).
     */
    simplifyFraction?: boolean;
    /**
     * If true, allow the use of single-word fractional forms where applicable (e.g., "półtorej", "ćwierć").
     */
    useSingleWordFractions?: boolean;
}
/**
 * Converts a number into its Polish word form.
 * Handles integers, fractions, and combinations, with support for informal forms and custom options.
 *
 * @param num The number to convert (e.g., 123, 0.5, 2.25, -1).
 * @param options Optional settings to control formatting behavior.
 * @returns The number expressed in Polish words.
 */
export declare function numberToWordsPL(num: number, options?: NumberToWordsOptions): string;