libghc-lens-dev - 4.16.1-3+b1 main

This package comes "Batteries Included" with many useful lenses for the types
commonly used from the Haskell Platform, and with tools for automatically
generating lenses and isomorphisms for user-supplied data types.
.
The combinators in Control.Lens provide a highly generic toolbox for composing
families of getters, folds, isomorphisms, traversals, setters and lenses and
their indexed variants.
.
More information on the care and feeding of lenses, including a tutorial and
motivation for their types can be found on the lens wiki
(https://github.com/ekmett/lens/wiki).
.
This package contains the normal library files.