Binary package “libghc-data-accessor-mtl-dev” in ubuntu hirsute

use Data.Accessor inside the State monad.

 This Haskell library provides methods to access the state in a State monad by
 means of Data.Accessor getters, setters and modifiers.
 .
 This package provides a library for the Haskell programming language.
 See http://www.haskell.org/ for more information on Haskell.