code: @Override
    public RestClientResponse doGet(String url) {
      log.info("Calling GET on: " + url);
  
      AsyncHttpClient.BoundRequestBuilder requestBuilder = asyncHttpClient.prepareGet(url);
      authorize(requestBuilder);
  
      RestClientResponse response = execute(requestBuilder);
  
      verifyResponseCode(response);
  
      return response;
    }
docs: Perform a plain GET call onto the passed URL.
  It will be authorized using {@link Configuration#authorize(com.ning.http.client.AsyncHttpClient.BoundRequestBuilder)}
  method.
  
  @param url url to call
  @return the RestClientResponse object containing the server response to our call