This module provides all of the optical exports, as well ask any associated combinators. For just the optics, see Optics, or if you are in need of something lighter weight, just for working with a CreateProcess in terms of getters and setters, see https://hackage.haskell.org/package/microlens

For more information on usage and how to work with lenses, see http://github.com/ekmett/lens/wiki and the tests for example uses. You can also ask questions on Freenode in the #haskell-lens channel.