Install libghc-pipes-group-doc by entering the following commands in the terminal:
sudo apt update sudo apt install libghc-pipes-group-doc
Description:
group streams into substreams; documentation
pipes-group uses FreeT and lenses to group streams into sub-streams. Notable features include: * Perfect Streaming: Group elements without collecting them into memory * Lens Support: Use lenses to simplify many common operations . 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://hackage.haskell.org/package/pipes-group
Version: 1.0.8-1build2
Section: universe/doc