Please rename your addHeaderBar functions. I can see two options...
1. Have a single function, named "addHeaderBar", that takes a single parameter, "HeaderBarType" which can be either "HeaderBarType.Start" or "HeaderBarType.End";
2. Have two separate functions, named "addStartHeaderBar" and "addEndHeaderBar"
Please rename your addHeaderBar functions. I can see two options...
1. Have a single function, named "addHeaderBar", that takes a single parameter, "HeaderBarType" which can be either "HeaderBarType. Start" or "HeaderBarType. End";
2. Have two separate functions, named "addStartHeaderBar" and "addEndHeaderBar"