Generically derive traversals, lenses and prisms.
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.
The library exposes a van Laarhoven interface. For an alternative
interface, supporting an opaque optic type, see
generic-optics.