/**
 * @author
 * @see https://github.com/herlandio
 *
 * Class responsible for validating CPF
 */
export declare class VerifyCPF {
    /**
     * Verify digits of CPF
     *
     * @param {string | number} cpf
     * @param {number} digit
     * @returns {string}
     */
    private verifyDigits;
    /**
     * Verify CPF
     *
     * @param {string | number} cpf
     * @returns {boolean}
     */
    verifyCPF(cpf: string | number): boolean;
}