libghc-generic-lens-dev 2.0.0.0-1build1 (armhf binary) in ubuntu hirsute

 This library uses GHC.Generics to derive efficient optics
 (traversals, lenses and prisms) for algebraic data types in a
 type-directed way, with a focus on good type inference and error
 messages when possible.
 .
 This package provides a library for the Haskell programming language.
 See http://www.haskell.org/ for more information on Haskell.