Where is RefValueType defined?

[SherryH]

Hello!

I am new to Reach UI and try to understand the code.
I am trying to understand how Reach manages the various refs like triggerRef and forwardedRef.
I see in the utils, there is function useComposedRefs<RefValueType = any>
Since I can't see anywhere in the repo where RefValueType is defined -
Does that mean RefValueType is just an arbitrary type that is any in the case?

Thank you!