Google\Cloud\Tests\Snippets\Vision\AnnotationTest::testFaces PHP Méthode

    public function testFaces()
    {
        $snippet = $this->snippetFromMethod(Annotation::class, 'faces');
        $snippet->addLocal('annotation', new Annotation(['faceAnnotations' => [['landmarks' => []]]]));
        $res = $snippet->invoke('faces');
        $this->assertInstanceOf(Face::class, $res->returnVal()[0]);
    }