public function __construct($client, $serializer = null)
{
if (!$serializer) {
$normalizer = new GetSetMethodNormalizer();
$normalizer->setCamelizedAttributes(array('icon_emoji', 'icon_url'));
$serializer = new Serializer(array($normalizer), array(new JsonEncoder()));
}
$this->client = $client;
$this->serializer = $serializer;
}