How to use the hardhat.ethers.Wallet function in hardhat

)
    throw new Error("Deployments.json doesn't include the necessary addresses")

  const maxSubmissionCost = 0
  const gasPrice = 0
  const maxGas = 100000000000
  const ethERC20Bridge = await EthERC20Bridge.deploy()

  console.log('EthERC20Bridge logic deployed to:', ethERC20Bridge.address)
  const l2Provider = new providers.JsonRpcProvider(
    'https://kovan4.arbitrum.io/rpc'
    // 'https://devnet-l2.arbitrum.io/rpc'
  )
  const l2PrivKey = process.env['DEVNET_PRIVKEY']
  if (!l2PrivKey) throw new Error('Missing l2 priv key')
  const l2Signer = new ethers.Wallet(l2PrivKey, l2Provider)

  const ArbTokenBridge = (
    await ethers.getContractFactory('ArbTokenBridge')
  ).connect(l2Signer)

  const arbTokenBridge = await ArbTokenBridge.deploy()
  console.log('L2 ArbBridge logic deployed to:', arbTokenBridge.address)
  await arbTokenBridge.deployed()

  const L1TransparentUpgradeableProxy = await ethers.getContractFactory(
    'TransparentUpgradeableProxy'
  )
  const L2TransparentUpgradeableProxy = (
    await ethers.getContractFactory('TransparentUpgradeableProxy')
  ).connect(l2Signer)