How to use the @nimiq/core/dist/node.Hash function in @nimiq/core

function generateHtlcTransaction(sender, recipient, hash, value, timeout) {
  const hashAlgo = Nimiq.Hash.Algorithm.SHA256
  const hashCount = 1
  value = Nimiq.Policy.coinsToSatoshis(value)
  timeout = $.blockchain.height + timeout
  const bufferSize = sender.serializedSize
    + recipient.serializedSize
    + /* hashAlgo */ 1
    + hash.byteLength
    + /* hashCount */ 1
    + /* timeout */ 4;
  const buffer = new Nimiq.SerialBuffer(bufferSize);
  sender.serialize(buffer);
  recipient.serialize(buffer);
  buffer.writeUint8(hashAlgo);
  buffer.write(hash);
  buffer.writeUint8(hashCount);
  buffer.writeUint32(timeout);

async function nimForEth() {
  const ethWallet = eth.addWallet(nim.getWalletPrivateKey())
  console.log('Local ETH wallet address =', ethWallet);
  let nimRecipient = await prompt('Enter NIM address of recipient: ')
  let value = await prompt('Enter NIM amount to send: ')
  value = parseFloat(value)
  const ethRecipient = await prompt('Enter ETH address to receive funds: ')
  const secret = randomBytes(32)
  console.log('Secret:', '0x' + Buffer.from(secret).toString('hex'));
  let hash = Nimiq.Hash.computeSha256(secret)
  const nimHtlcAddress = await nim.deployHTLC(nimRecipient, hash, value)
  hash = '0x' + Buffer.from(hash).toString('hex')
  const ethHtlcAddress = await eth.deployHTLC(ethWallet, ethRecipient, hash)
  console.log('NIM HTLC address:', nimHtlcAddress);
  console.log('ETH HTLC address:', ethHtlcAddress);
  console.log(`Enter 1 if agreed amount of ETH has been sent to ${ethHtlcAddress}`);
  let answer = await prompt('Or enter 2 to recover your NIM after the timeout (wait 1 hour): ')
  switch (answer) {
    case '1':
      console.log('Resolving ETH HTLC...');
      await eth.resolveHTLC(ethWallet, ethHtlcAddress, '0x' + secret.toString('hex'))
      break
    case '2':
      nimRecipient = await prompt('Enter NIM address to receive funds: ')
      await nim.refundHTLC(nimHtlcAddress, nimRecipient)
      break

address = Nimiq.Address.fromString(address)
  recipient = Nimiq.Address.fromString(recipient)
  const account = await $.consensus.getAccount(address)
  const tx = new Nimiq.ExtendedTransaction(
    address, Nimiq.Account.Type.HTLC,
    recipient, Nimiq.Account.Type.BASIC,
    account.balance, 0,
    $.blockchain.height + 1,
    Nimiq.Transaction.Flag.NONE, new Uint8Array(0))
  const sig = Nimiq.Signature.create($.wallet.keyPair.privateKey, $.wallet.publicKey, tx.serializeContent())
  const sigProof = new Nimiq.SignatureProof($.wallet.publicKey, new Nimiq.MerklePath([]), sig)
  tx.proof = new Nimiq.SerialBuffer(3 + 2 * Nimiq.Hash.SIZE.get(Nimiq.Hash.Algorithm.SHA256) + sigProof.serializedSize)
  tx.proof.writeUint8(Nimiq.HashedTimeLockedContract.ProofType.REGULAR_TRANSFER)
  tx.proof.writeUint8(Nimiq.Hash.Algorithm.SHA256)
  tx.proof.writeUint8(1)
  Nimiq.Hash.fromHex(hashRoot.slice(2)).serialize(tx.proof)
  Nimiq.Hash.fromHex(preImage.slice(2)).serialize(tx.proof)
  sigProof.serialize(tx.proof)
  await sendTransaction(tx)
}