How to use the @0x/contracts-staking.ZrxVaultContract function in @0x/contracts-staking

export async function runMigrationsAsync(supportedProvider: SupportedProvider, txDefaults: TxData): Promise {
    const provider = providerUtils.standardizeOrThrow(supportedProvider);
    const chainId = new BigNumber(await providerUtils.getChainIdAsync(provider));
    const deployedAddresses = getContractAddressesForChainOrThrow(chainId.toNumber());
    const configs = getConfigsByChainId(chainId.toNumber());

    // NOTE: This must be deployed before running these migrations, since its address is hard coded in the
    // staking logic contract.
    const zrxVault = new ZrxVaultContract(deployedAddresses.zrxVault, provider, txDefaults);

    const stakingLogic = await StakingContract.deployFrom0xArtifactAsync(
        stakingArtifacts.Staking,
        provider,
        txDefaults,
        stakingArtifacts,
    );

    const exchange = await ExchangeContract.deployFrom0xArtifactAsync(
        exchangeArtifacts.Exchange,
        provider,
        txDefaults,
        exchangeArtifacts,
        chainId,
    );

export async function getTimelockRegistrationsAsync(provider: SupportedProvider): Promise {
    const web3Wrapper = new Web3Wrapper(provider);
    const chainId = await web3Wrapper.getChainIdAsync();
    const deployedAddresses = getContractAddressesForChainOrThrow(chainId);

    const authorizableInterface = new IAuthorizableContract(constants.NULL_ADDRESS, provider);
    const ownableInterface = new IOwnableContract(constants.NULL_ADDRESS, provider);
    const zrxVault = new ZrxVaultContract(constants.NULL_ADDRESS, provider);
    const stakingProxy = new StakingProxyContract(constants.NULL_ADDRESS, provider);
    const exchange = new ExchangeContract(constants.NULL_ADDRESS, provider);
    const stakingLogic = new StakingContract(constants.NULL_ADDRESS, provider);

    const noTimelockRegistrations = [
        // AssetProxy timelocks
        {
            destination: deployedAddresses.erc20Proxy,
            functionSelector: authorizableInterface.getSelector('removeAuthorizedAddress'),
            secondsTimeLocked: constants.ZERO_AMOUNT,
        },
        {
            destination: deployedAddresses.erc20Proxy,
            functionSelector: authorizableInterface.getSelector('removeAuthorizedAddressAtIndex'),
            secondsTimeLocked: constants.ZERO_AMOUNT,
        },

if (actual !== expected) {
            logUtils.warn(`${message}: actual: ${actual}, expected: ${expected}, chainId: ${chainId}`);
        }
    }

    const exchange = new ExchangeContract(addresses.exchange, provider);
    const exchangeV2 = new ExchangeContract(addresses.exchangeV2, provider);
    const erc20Proxy = new ERC20ProxyContract(addresses.erc20Proxy, provider);
    const erc721Proxy = new ERC721ProxyContract(addresses.erc721Proxy, provider);
    const erc1155Proxy = new ERC1155ProxyContract(addresses.erc1155Proxy, provider);
    const multiAssetProxy = new MultiAssetProxyContract(addresses.multiAssetProxy, provider);
    const erc20BridgeProxy = new ERC20ProxyContract(addresses.erc20BridgeProxy, provider);
    const governor = new ZeroExGovernorContract(addresses.zeroExGovernor, provider);
    const stakingProxy = new StakingProxyContract(addresses.stakingProxy, provider);
    const stakingContract = new StakingContract(addresses.stakingProxy, provider);
    const zrxVault = new ZrxVaultContract(addresses.zrxVault, provider);

    async function verifyExchangeV2ConfigsAsync(): Promise {
        const exchangeOwner = await exchangeV2.owner().callAsync();
        warnIfMismatch(exchangeOwner, governor.address, 'Unexpected ExchangeV2 owner');

        const registeredERC20Proxy = await exchangeV2.getAssetProxy(AssetProxyId.ERC20).callAsync();
        warnIfMismatch(registeredERC20Proxy, erc20Proxy.address, 'Unexpected ERC20Proxy registered in ExchangeV2');

        const registeredERC721Proxy = await exchangeV2.getAssetProxy(AssetProxyId.ERC721).callAsync();
        warnIfMismatch(registeredERC721Proxy, erc721Proxy.address, 'Unexpected ERC721Proxy registered in ExchangeV2');

        const registeredERC1155Proxy = await exchangeV2.getAssetProxy(AssetProxyId.ERC1155).callAsync();
        warnIfMismatch(
            registeredERC1155Proxy,
            erc1155Proxy.address,
            'Unexpected ERC1155Proxy registered in ExchangeV2',