Install libghc-microlens-mtl-doc by entering the following commands in the terminal:
sudo apt update sudo apt install libghc-microlens-mtl-doc
Description:
microlens support for Reader/Writer/State from mtl; documentation
This package contains functions (like 'view' or '+=') which work on 'MonadReader', 'MonadWriter', and 'MonadState' from the mtl package. . This package is a part of the microslens family. . This package provides the documentation for a library for the Haskell programming language. See http://www.haskell.org/ for more information on Haskell.
Homepage: http://github.com/aelve/microlens
Version: 0.1.11.0-1build1
Section: universe/doc