function stringToHeximport { stringToHex } from "https://dotland.deno.dev/x/polkadot@0.2.35/util/index.ts"; stringToHex(value?: AnyString): HexStringExamples import { stringToHex } from 'https://deno.land/x/polkadot@0.2.35/util/mod.ts'; stringToU8a('hello'); // 0x68656c6c6f Parametersoptionalvalue: AnyStringReturnsHexString