function util.hexToStringimport { util } from "https://dotland.deno.dev/x/polkadot@0.2.45/mod.ts"; const { hexToString } = util; hexToString(_value?: string | null): stringExamples import { hexToString } from 'https://deno.land/x/polkadot@0.2.45/util/mod.ts'; hexToU8a('0x68656c6c6f'); // hello Parametersoptional_value: string | nullReturnsstring