public function execute($httpMethod, $url, array $parameters = [])
{
try {
$parameters = Utility::prepareParameters($parameters);
$response = $this->getClient()->{$httpMethod}('v1/' . $url, ['query' => $parameters]);
return json_decode((string) $response->getBody(), true);
} catch (ClientException $e) {
new Handler($e);
}
}