code: public RequestResponse doGet(String url, Map<String, Object> headers,
              Map<String, Object> urlParams) {
          RequestResponse requestResponse = initRequestResponse("GET", url, headers, urlParams, null);
          Request.Builder requestBuilder = buildRequest(url, headers, urlParams).get();
          return doCall(client, requestBuilder.build(), requestResponse);
      }
docs: Perform a GET request.
  
  @param url
  @param headers
  @param urlParams
  @return