/**
  * @param $accessToken
  * @param $apiVersion
  *
  * @return ClientProxyFactory
  */
 protected function _getClientProxyFactory($accessToken)
 {
     $developerToken = Configure::read('BingAds.developer_token');
     $clientProxyFactory = new ClientProxyFactory();
     $clientProxyFactory->setAccessToken($accessToken);
     $clientProxyFactory->setDeveloperToken($developerToken);
     return $clientProxyFactory;
 }