function map.updateimport { map } from "https://deno.land/x/fun@v2.0.0-alpha.6/mod.ts"; const { update } = map; update<B>(S: Eq<B>): <A>(value: A) => (key: B) => (map: ReadonlyMap<B, A>) => ReadonlyMap<B, A>Type ParametersBParametersS: Eq<B>Returns<A>(value: A) => (key: B) => (map: ReadonlyMap<B, A>) => ReadonlyMap<B, A>