GuzzleHttp\Exception\RequestException::getHandlerContext PHP Method

    public function getHandlerContext()
    {
        return $this->handlerContext;
    }

 public function testCanProvideHandlerContext()
 {
     $r = new Request('GET', 'http://www.oo.com');
     $e = new RequestException('foo', $r, null, null, ['bar' => 'baz']);
     $this->assertEquals(['bar' => 'baz'], $e->getHandlerContext());
 }