import { type fn_either } from "https://deno.land/x/fun@v2.0.0/mod.ts";
const { KindFnEither } = fn_either;
Specifies FnEither as a Higher Kinded Type, with covariant parameter A and B corresponding to the 0th and 1st indices of any Substitutions and a contravariant parameter D corresponding to the 0th index of any Substititions. The FnEither KindFnEither is unique in that it constrains the FnEither type to taking a single argument for the purposes of type substitution while the implementations of FnEither combinators such as map, flatmap, etc are mostly variadic (multiple arguments).
Properties
readonly
kind: FnEither<In<this, 0>, Out<this, 1>, Out<this, 0>>