import { mnemonicGenerate } from "https://deno.land/x/polkadot@0.2.39/util-crypto/mnemonic/generate.ts";
Examples
import { mnemonicGenerate } from 'https://deno.land/x/polkadot@0.2.39/util-crypto/mod.ts';
const mnemonic = mnemonicGenerate(); // => string