Arbitrum

import { Arbitrum } from './Arbitrum.js';

const arb = Arbitrum({
  l1Provider,
  l2Provider,
  l1Gateway: L1_GATEWAY_ROUTER,
  l2Gateway: L2_GATEWAY_ROUTER,
});

// Deposit ETH to L2
await arb.depositEth({
  amount: parseEther('1'),
  signer: l1Signer,
});

// Deposit ERC20
await arb.depositToken({
  l1Token: USDC_L1,
  amount: parseUnits('1000', 6),
  signer: l1Signer,
});

// Withdraw to L1 (7 day delay)
await arb.withdrawEth({
  amount: parseEther('1'),
  signer: l2Signer,
});

// Create L1->L2 message
const ticket = await arb.createRetryableTicket({
  to: l2Contract,
  l2CallValue: 0n,
  data: encodedCall,
  maxSubmissionCost,
  gasLimit: 1000000n,
  maxFeePerGas,
  signer: l1Signer,
});

// Redeem failed ticket
await arb.redeemRetryable({
  ticketId,
  signer: l2Signer,
});

// Get L1 block number
const l1Block = await arb.arbSys.arbBlockNumber();

// Get L2 to L1 tx count
const count = await arb.arbSys.sendTxToL1Count();