Наследование: use trait UriTrait
 public function testBuildsNestedRequestWithStringSplitting()
 {
     $builder = new RequestBuilder(__DIR__ . '/fixtures/service-fixture.json', 'http://www.example.com/', ['resources', 'projects', 'otherThing']);
     $parameters = ['queryParam' => 'query', 'pathParam' => 'path', 'referenceProp' => 'reference'];
     $request = $builder->build('myOtherResource.resources.evenMoreNestedThing', 'evenMoreNestedResource', $parameters);
     $uri = $request->getUri();
     $this->assertEquals('/path', $uri->getPath());
     $this->assertEquals('queryParam=query', $uri->getQuery());
     $this->assertEquals('{"referenceProp":"reference"}', (string) $request->getBody());
 }