method Lazy.prototype.foldimport { Lazy } from "https://deno.land/x/better_iterators@v1.5.0/mod.ts"; fold<I>(initial: I, foldFn: (i: I, t: T) => I): IType ParametersIParametersinitial: IfoldFn: (i: I, t: T) => IReturnsI