function lensPropimport { lensProp } from "https://deno.land/x/rambda@9.2.1/mod.ts"; lensProp<S, K extends keyof S = keyof S>(prop: K): Lens<S, S[K]>It returns a lens that focuses on specified property prop. It returns a lens that focuses on specified property prop. Type ParametersSoptionalK extends keyof S = keyof SParametersprop: KReturnsLens<S, S[K]>