How to use the hsd.Address function in hsd

async function withdrawHandler(request, h) {
  const wallet = getWallet();

  //Get balance, and conver to HNS units (BigNumber)
  let balanceData = await wallet.getBalance();
  let balance = convertToHNS(balanceData.confirmed);

  //Calculate available to withdraw
  let available = calculateWithdraw(balance);

  available = convertToHNS(available, false);

  let address = new Address(request.payload.address);

  //Expect this to be in subunit
  let amount = request.payload.amount;

  let tx;

  //Check if the address is valid.
  if (!address.isValid()) {
    return h.response("This address is not valid").code(401);
  }

  if (amount > available || amount == 0) {
    return h
      .response("You cannot withdraw this much. Please try again.")
      .code(401);
  }

if (height <= tip && height >= 0) {
      let result = { type: "Block", url: `/block/${height}` };

      results.push(result);
    }
  }

  if (txHash.test(search)) {
    let result = { type: "Transaction", url: `/tx/${search}` };
    results.push(result);
  }

  let address;

  try {
    address = new Address(search);
  } catch (e) {
    //Do nothing.
  }

  if (address) {
    if (address.isValid()) {
      let result = { type: "Address", url: `/address/${search}` };
      results.push(result);
    }
  }

  if (rules.verifyString(search)) {
    let result = { type: "Name", url: `/name/${search}` };
    results.push(result);
  }