Add header to files
If you want to add a header to your files, you can set it once and it will be added to all your generated files.
At first, you need to start the header.
fileManager.StartHeader();
Add your header content in your T4.
Complete your header.
fileManager.FinishHeader();
If you want to clear your header in same T4 file, you can use following code.
fileManager.ClearHeader();
Compatibility to old FileManager
StartHeader is equivalent to old file manager.
Instead of FinishHeader use old EndBlock.
fileManager.EndBlock();