import { refinement } from "https://deno.land/x/fun@v2.0.0-alpha.12/mod.ts";
const { isArrayN } = refinement;
Creates an instance Refinement<unknown, Array<unknown> & { length: N }>
where N is a number.
Parameters
n: N
Returns
Refinement<unknown, Array<unknown> & { length: N; }>