import { contramap } from "https://deno.land/x/fun@v.2.0.0-alpha.11/decoder.ts";
Map over the input of a Decoder contravariantly. This allows one to use an existing decoder against a transformed input.
import { contramap } from "https://deno.land/x/fun@v.2.0.0-alpha.11/decoder.ts";
Map over the input of a Decoder contravariantly. This allows one to use an existing decoder against a transformed input.