1.20.1 Where is the jump boost class?

[Spyer]

Hello. Where can I find how Vanilla jump boost effect works. I have been searching this class for a few hours but have not found it anywhere.

I just want to use it functional in my mod.

Edited May 11, 2024 by Spyer

[scientistknight1]

If I remember correctly, Jump Boost uses an attribute modifier. It doesn't have its own class.

[Spyer]

Thanks. But how can I work with these attribute modifiers?