How can I bind an event from a function?

I have a function that needs to rebind events, making this instance subscribe to the dispatcher from another object. I have a custom event in the event graph I want to bind but I can’t reference it from within the function. The delegate types are definitely compatible, since if I try to bind from the event graph, I can use the red square pin from the event’s definition.

In that list, you can select ‘create event’, and then specify:

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Strange, yesterday I checked out this node and there was no drop down list but now there is.