address public immutable creator;
IVault public immutable vault;

modifier onlyCreator {
    require(msg.sender == creator, "GPv2: not creator");
    _;
}

function transferFromAccounts(
    GPv2Transfer.Data[] calldata transfers
) external onlyCreator;

function batchSwapWithFee(
    IVault.BatchSwapStep[] calldata swaps,
    IERC20[] calldata tokens,
    IVault.FundManagement calldata funds,
    int256[] calldata limits,
    uint256 deadline,
    GPv2Transfer.Data calldata feeTransfer
) external onlyCreator returns (int256[] memory tokenDeltas);