public function __construct(Client $client, $boundary = false, $rootUrl = '', $batchPath = '')
{
$this->client = $client;
$this->root_url = rtrim($rootUrl ? $rootUrl : $this->client->getBasePath(), '/');
$this->batch_path = $batchPath ? $batchPath : 'batch';
$this->expected_classes = array();
$boundary = false == $boundary ? mt_rand() : $boundary;
$this->boundary = str_replace('"', '', $boundary);
}
