import { O } from "https://deno.land/x/ahh@v0.10.0/mod.ts";
Returns whether opt strictly equals value, or
false if it is an None.
Examples
import { O, None } from "./mod.ts";
console.log(O.contains(1, 1)); // true
console.log(O.contains(1, 2)); // false
console.log(O.contains(None, 1)); // false