Lcobucci\JWT\Configuration::createBuilder PHP Method

    public function createBuilder() : Builder
    {
        return new Builder($this->getEncoder(), $this->getClaimFactory());
    }

 /**
  * @test
  *
  * @covers \Lcobucci\JWT\Configuration
  * @covers \Lcobucci\JWT\Builder
  * @covers \Lcobucci\JWT\Token
  * @covers \Lcobucci\JWT\Signature
  * @covers \Lcobucci\JWT\Claim\Factory
  * @covers \Lcobucci\JWT\Claim\Basic
  * @covers \Lcobucci\JWT\Signer\Key
  * @covers \Lcobucci\JWT\Signer\BaseSigner
  * @covers \Lcobucci\JWT\Signer\Hmac
  * @covers \Lcobucci\JWT\Signer\Hmac\Sha256
  */
 public function builderCanGenerateAToken()
 {
     $user = ['name' => 'testing', 'email' => '*****@*****.**'];
     $builder = $this->config->createBuilder();
     $token = $builder->identifiedBy('1')->canOnlyBeUsedBy('http://client.abc.com')->issuedBy('http://api.abc.com')->with('user', $user)->withHeader('jki', '1234')->sign($this->config->getSigner(), new Key('testing'))->getToken();
     self::assertAttributeInstanceOf(Signature::class, 'signature', $token);
     self::assertEquals('1234', $token->getHeader('jki'));
     self::assertEquals(['http://client.abc.com'], $token->getClaim('aud'));
     self::assertEquals('http://api.abc.com', $token->getClaim('iss'));
     self::assertEquals($user, $token->getClaim('user'));
     return $token;
 }