Emarref\Jwt\Token::addHeader PHP Méthode

    public function addHeader(HeaderParameter\ParameterInterface $parameter, $critical = false)
    {
        $this->header->setParameter($parameter, $critical);
    }

 public function sign(Token $token)
 {
     $token->addHeader(new Algorithm($this->encryption->getAlgorithmName()));
     $rawSignature = $this->getUnsignedValue($token);
     $signature = $this->encryption->encrypt($rawSignature);
     $token->setSignature($signature);
 }