/**
  * @Given a refresh token
  */
 public function aRefreshToken()
 {
     //$this->refreshToken = $this->getEnvValueAndThrowIfNotSet("GettyImagesApi_RefreshToken");
     $envToGetKeyFrom = "GettyImagesApi_UserName";
     $username = $this->getEnvValueAndThrowIfNotSet($envToGetKeyFrom);
     $envToGetKeyFrom = "GettyImagesApi_UserPassword";
     $password = $this->getEnvValueAndThrowIfNotSet($envToGetKeyFrom);
     $sdk = new GettyImages_Client($this->sharedContext->apiKey, $this->sharedContext->apiSecret, $username, $password, null);
     $this->accessTokenResponse = $sdk->getAccessToken();
     $this->refreshToken = $this->accessTokenResponse['refresh_token'];
 }