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async function deployERC20() {
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  // Config provider, wallet, and contract factory
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  const provider = new quais.providers.JsonRpcProvider(hre.network.config.url)
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  const wallet = new quais.Wallet(hre.network.config.accounts[0], provider)
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  const ERC20 = new quais.ContractFactory(ERC20Json.abi, ERC20Json.bytecode, wallet)
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  // Broadcast deploy transaction
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  const erc20 = await ERC20.deploy(...tokenArgs, { gasLimit: 5000000 })
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  console.log('Deploy tx hash: ' + erc20.deployTransaction.hash)
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  // Wait for contract to be deployed (using quais-polling)
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  const deployReceipt = await pollFor(provider, 'getTransactionReceipt', [erc20.deployTransaction.hash], 1.5, 1)
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  console.log('ERC20 deployed to:', deployReceipt.contractAddress)
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}