function randomAsU8aimport { randomAsU8a } from "https://dotland.deno.dev/x/polkadot@0.2.23/util-crypto/random/asU8a.ts"; randomAsU8a(length?): Uint8ArrayExamples import { randomAsU8a } from 'https://deno.land/x/polkadot@0.2.23/util-crypto/mod.ts'; randomAsU8a(); // => Uint8Array([...]) Parametersoptionallength = [UNSUPPORTED]ReturnsUint8Array