import { either } from "https://deno.land/x/fun@v.2.0.0-alpha.11/mod.ts";
const { getLeftSemigroup } = either;
Parameters
SE: Semigroup<E>
import { either } from "https://deno.land/x/fun@v.2.0.0-alpha.11/mod.ts";
const { getLeftSemigroup } = either;