import { Language } from '../types/converterTypes';
/**
 * Joins an array of words into a single string, removing extra spaces.
 */
export declare function formatWords(words: string[]): string;
/**
 * Pads a decimal string to at least 2 digits (e.g., '5' -> '05').
 */
export declare function padDecimal(decimal: string): string;
/**
 * Formats a currency amount with the currency name, language-aware.
 */
export declare function formatCurrencyAmount(amount: string, currency: string, lang: Language): string;