RequestException

class \Http\Client\Exception\TransferException extends \Http\Client\Exception\RuntimeException implements \Http\Client\Exception
- class \Http\Client\Exception\NetworkException extends \Http\Client\Exception\TransferException implements \Psr\Http\Client\NetworkExceptionInterface uses \Http\Client\Exception\RequestAwareTrait
- class \Http\Client\Exception\RequestException extends \Http\Client\Exception\TransferException implements \Psr\Http\Client\RequestExceptionInterface uses \Http\Client\Exception\RequestAwareTrait
  - class \Http\Client\Exception\HttpException extends \Http\Client\Exception\RequestException