code: private void addPostParams(final Request request) {
          if (friendlyName != null) {
              request.addPostParam("FriendlyName", friendlyName);
          }
  
          if (certificate != null) {
              request.addPostParam("Certificate", certificate);
          }
  
          if (privateKey != null) {
              request.addPostParam("PrivateKey", privateKey);
          }
  
          if (sandbox != null) {
              request.addPostParam("Sandbox", sandbox.toString());
          }
  
          if (apiKey != null) {
              request.addPostParam("ApiKey", apiKey);
          }
  
          if (secret != null) {
              request.addPostParam("Secret", secret);
          }
      }
docs: Add the requested post parameters to the Request.
  
  @param request Request to add post params to