export type FormatCurrencyOptions = {
    symbol?: boolean;
    precision?: number;
};
/**
 * Formats a given value as a currency string in Brazilian Real (BRL).
 *
 * @param {string|number} value - The value to be formatted. Can be a string or a number.
 * @param {Object} options - Optional formatting options.
 * @param {boolean} options.symbol - If true, includes the currency symbol in the formatted string.
 * @param {number} options.precision - The number of decimal places to include in the formatted string. Defaults to 2.
 * @returns {string} The formatted currency string.
 *
 * @example
 * ```typescript
 * formatCurrency(1234.56); // "1.234,56"
 * formatCurrency(1234.56, { symbol: true }); // "R$ 1.234,56"
 * formatCurrency("1234.56", { precision: 3 }); // "1.234,560"
 * ```
 */
export declare const formatCurrency: (value: string | number, options?: FormatCurrencyOptions) => string;