[Haskell-cafe] data EitherF m1 m2 a = LeftF (m1 a) | RightF (m2 a)

[Daniel van den Eijkel]

Hi,

I am wondering if there is a library with a datatype like the following
defined:

data EitherF m1 m2 a = LeftF (m1 a) | RightF (m2 a)

I could not find anything with Hoogle. Does anybody know such a thing?

Thank you & best, Daniel