How do I create a custom TakeDamage event?

All I really want to do is create another TakeDamage function that has one more parameter. Everything I have tried has given me errors when trying to compile. My class is called BaseEnemy and it inherits Character.

I will just be going about it a different way, just creating a new event for the damage event I want to create. I will just call the base apply and take damage events from the new event.