[Haskell-cafe] Looking for reliable heterogeneous vectors

[Sergey Bushnyak]

Hello, everyone. I'm looking for reliable library or idea how to 
implement heterogenous vector properly. It may seem odd, but I want 
elements not only be different types but also functions, something like 
that, pseudocode:

     hvec [a b (c->d) [a] ...]  -- can be any type
     let hvec = hvec [ "stuff" 5 getUrl [1, 4, 5]]

So far I found *vector-heterogenous* package, but can't decide is it 
good to build on or create something on my own.

Any thoughts and ideas are appreciated. Thanks.