code: public void rename(String newName) {
          URL url = FILE_URL_TEMPLATE.build(this.getAPI().getBaseURL(), this.getID());
          BoxJSONRequest request = new BoxJSONRequest(this.getAPI(), url, "PUT");
  
          JsonObject updateInfo = new JsonObject();
          updateInfo.add("name", newName);
  
          request.setBody(updateInfo.toString());
          BoxAPIResponse response = request.send();
          response.disconnect();
      }
docs: Renames this file.
  
  @param newName the new name of the file.