// get a chain object (for an Ethereum chain using Ropsten testnet)
  const ethChain = new ChainFactory().create(ChainType.EthereumV1, ropstenEndpoints)
  // create a transaction object
  const sendTokenTx = await chain.new.Transaction()
  // set contract action(s) - composeAction simplifies transaction composition
  sendTokenTx.actions = [ await chain.composeAction(ChainActionType.TokenTransfer, { to: '0x271...', contractAddress: '0x048...', amount: '10.00' }) ]
  ...
  // sign and send the transaction to the chain
  await sendTokenTx.sign([privateKey])
  await sendTokenTx.send(ConfirmType.None)

  // get a chain object (for an EOS chain using Kylin testnet)
  const eosChain = new ChainFactory().create(ChainType.ChainEosV2, kylinEndpoints, chainSettings)

  // new account options
  const accountOptions = {
    accountName: 'abcdefghijkl'
    creatorAccountName: 'mypayeraccnt',
    creatorPermission: 'active',
    ...
  }

  // get an account creator class
  const accntCreator = await eosChain.new.CreateAccount()
  // generate the transaction to create an on-chain account
  await accntCreator.composeTransaction(AccountType.Native)
  // sign and send the transaction to the chain
  await accntCreator.transaction.sign([{myPrivateKeys}])
  accntCreator.transaction.send()

   /** Using chain-specifc features - ex. eosjs */
   const myChain = new ChainFactory().create(ChainType.ChainEosV2, kylinEndpoints, chainSettings)
   // (Typescript) cast generic chain to EOS chain object
   const eosChain = (mychain as ChainEosV2) // EOSIO node version 2.x
   eosChain.eosjs.api.transact({...})

   /** Using Ethereum chain-specifc features - ex. web3 */
   ...
   ethChain.web3.api.getBalance(address)