public function testImages()
{
$snippet = $this->snippetFromMethod(VisionClient::class, 'images');
$snippet->addLocal('vision', $this->client);
$snippet->setLine(3, '$familyPhotoResource = fopen(\'php://temp\', \'r\');');
$snippet->setLine(4, '$weddingPhotoResource = fopen(\'php://temp\', \'r\');');
$res = $snippet->invoke('images');
$this->assertInstanceOf(Image::class, $res->returnVal()[0]);
$this->assertInstanceOf(Image::class, $res->returnVal()[1]);
}