import { LocaleConverter } from '../types';
/**
 * Estonian Number to Words Converter
 *
 * Features:
 * - Estonian number system with proper declensions
 * - Currency: Euro and sent (euro ja sent)
 * - Handles compound numbers and gender agreement
 * - Special cases for numbers ending in 1 (üks vs ühe)
 * - Proper ordinal and cardinal number forms
 */
export declare class EstonianConverter implements LocaleConverter {
    private readonly ones;
    private readonly tens;
    private readonly scales;
    convert(amount: number): string;
    private shouldUsePluralCurrency;
    private isValidNumber;
    private parseAmount;
    private convertWholeNumber;
    private convertTens;
    private convertScale;
}