interface OptNone implements Option<T>import { type OptNone } from "https://deno.land/x/monads@v0.5.10/option/option.ts"; Type ParametersTMethodsunwrap(): nevermap<U>(fn: (val: T) => U): OptNone<U>or<U>(optb: Option<U>): Option<U>and<U>(optb: Option<U>): OptNone<U>