Install libghc-wai-http2-extra-doc by entering the following commands in the terminal:
sudo apt update sudo apt install libghc-wai-http2-extra-doc
Description:
WAI utilities for HTTP/2; documentation
WAI utilities for HTTP/2, such as middleware for a server push learning dependency based on the Referer header. . 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/yesodweb/wai
Version: 0.1.0-1build2
Section: universe/doc