variable numberimport { number } from "https://deno.land/x/fun@v2.0.0-alpha.10/decoder.ts"; A Decoder that validates numbers. ExamplesExample 1 import * as D from "./decoder.ts"; const result1 = D.number(null); // Left(DecodeError) const result2 = D.number(1); // Right(1) typeDecoder<unknown, number>