export type Format = 'normal' | 'spacing' | 'mixed' | 'lingual' | 'lingual_spacing' | 'float';
export declare const FormatOptions: {
    [key: string]: Format;
};
/**
 * Converts a number to Korean notation.
 * @param num A number to convert into Korean notation.
 * @param formatOptions A string to select a format.
 */
export declare function numToKorean(num: number, formatOptions?: Format): string;