function lensimport { lens } from "https://dotland.deno.dev/x/rambda@9.4.1/files/index.d.ts"; lens<S, A>(getter: (s: S) => A, setter: (a: A, s: S) => S): Lens<S, A>Type ParametersSAParametersgetter: (s: S) => Asetter: (a: A, s: S) => SReturnsLens<S, A>