How do I create an event from a blueprint class?

Hey guys,
I would like to ask if anyone knows how to create an event in a blueprint from a blueprint interface class? Thanks.

This may help you :

https://docs.unrealengine.com/latest/INT/Engine/Blueprints/UserGuide/Types/Interface/UsingInterfaces/index.html

https://docs.unrealengine.com/latest/INT/Engine/Blueprints/UserGuide/Types/Interface/index.html