Lcobucci\JWT\Token::getHeader PHP Method

    public function getHeader(string $name, $default = null)
    {
        if ($this->hasHeader($name)) {
            return $this->getHeaderValue($name);
        }
        if ($default === null) {
            throw new OutOfBoundsException('Requested header is not configured');
        }
        return $default;
    }

 /**
  * @test
  *
  * @uses Lcobucci\JWT\Token::__construct
  * @uses Lcobucci\JWT\Token::hasHeader
  * @uses Lcobucci\JWT\Claim\Basic
  *
  * @covers Lcobucci\JWT\Token::getHeader
  * @covers Lcobucci\JWT\Token::getHeaderValue
  */
 public function getHeaderMustReturnValueWhenItIsAReplicatedClaim()
 {
     $token = new Token(['jti' => new EqualsTo('jti', 1)]);
     $this->assertEquals(1, $token->getHeader('jti'));
 }