/**
 * Validates if a Brazilian license plate (placa de carro ou moto) is valid.
 * Supports the old Brazilian format (ABC-1234) and the Mercosul format for cars (ABC1D23) and motorcycles (ABC12D3).
 *
 * @param {string} value - The license plate value to be validated.
 * @returns {boolean} True if the license plate is valid, false otherwise.
 *
 * @example
 * ```typescript
 * isValidLicensePlate("abc1234"); // true (Brazilian format)
 * isValidLicensePlate("ABC-1234"); // true (Brazilian format with hyphen)
 * isValidLicensePlate("abc1d23"); // true (Mercosul format - Car)
 * isValidLicensePlate("ABC12D3"); // true (Mercosul format - Motorcycle)
 * isValidLicensePlate("invalid"); // false
 * ```
 */
export declare const isValidLicensePlate: (value: string) => boolean;