Request feedback - Generics package blog

If anyone's using the class, please let me know what you think about it.

I just wanna ask you a few questions:
Do you like the idea of the class?
Do you use it ot plan to use it in the future?

I just added some new features. A new way to check whether the parameters are from the correct type.
Have you tried it?
Which way do you prefer? The new one or the old one?