function isU8aimport { isU8a } from "https://dotland.deno.dev/x/polkadot@0.2.23/util/is/index.ts"; isU8a(value?: unknown): value is Uint8ArrayExamples import { isUint8Array } from 'https://deno.land/x/polkadot@0.2.23/util/mod.ts'; console.log('isU8a', isU8a([])); // => false Parametersoptionalvalue: unknownReturnsvalue is Uint8Array