$content = json_decode($client->getResponse()->getContent(), true);
$this->assertArrayHasKey('tags', $content);
$content = json_decode($client->getResponse()->getContent(), true);
$this->assertArrayHasKey('tags', $content);
$content = json_decode($client->getResponse()->getContent(), true);
$this->assertArrayHasKey('tags', $content);
$content = json_decode($client->getResponse()->getContent(), true);
$this->assertArrayHasKey('tags', $content);