interface IBroker {

    /// @dev Fills a single property-based order by the given amount using the given assets.
    ///      Pays protocol fees using either the ETH supplied by the taker to the transaction or
    ///      WETH acquired from the maker during settlement. The final WETH balance is sent to the taker.
    /// @param brokeredTokenIds Token IDs specified by the taker to be used to fill the orders.
    /// @param order The property-based order to fill. The format of a property-based order is the
    ///        same as that of a normal order, except the takerAssetData. Instaed of specifying a
    ///        specific ERC721 asset, the takerAssetData should be ERC1155 assetData where the
    ///        underlying tokenAddress is this contract's address and the desired properties are
    ///        encoded in the extra data field. Also note that takerFees must be denominated in
    ///        WETH (or zero).
    /// @param takerAssetFillAmount The amount to fill the order by.
    /// @param signature The maker's signature of the given order.
    /// @param fillFunctionSelector The selector for either `fillOrder` or `fillOrKillOrder`.
    /// @param ethFeeAmounts Amounts of ETH, denominated in Wei, that are paid to corresponding feeRecipients.
    /// @param feeRecipients Addresses that will receive ETH when orders are filled.
    /// @return fillResults Amounts filled and fees paid by the maker and taker.
    function brokerTrade(
        uint256[] calldata brokeredTokenIds,
        LibOrder.Order calldata order,
        uint256 takerAssetFillAmount,
        bytes calldata signature,
        bytes4 fillFunctionSelector,
        uint256[] calldata ethFeeAmounts,
        address payable[] calldata feeRecipients
    )
        external
        payable
        returns (LibFillResults.FillResults memory fillResults);

    /// @dev Fills multiple property-based orders by the given amounts using the given assets.
    ///      Pays protocol fees using either the ETH supplied by the taker to the transaction or
    ///      WETH acquired from the maker during settlement. The final WETH balance is sent to the taker.
    /// @param brokeredTokenIds Token IDs specified by the taker to be used to fill the orders.
    /// @param orders The property-based orders to fill. The format of a property-based order is the
    ///        same as that of a normal order, except the takerAssetData. Instaed of specifying a
    ///        specific ERC721 asset, the takerAssetData should be ERC1155 assetData where the
    ///        underlying tokenAddress is this contract's address and the desired properties are
    ///        encoded in the extra data field. Also note that takerFees must be denominated in
    ///        WETH (or zero).
    /// @param takerAssetFillAmounts The amounts to fill the orders by.
    /// @param signatures The makers' signatures for the given orders.
    /// @param batchFillFunctionSelector The selector for either `batchFillOrders`,
    ///        `batchFillOrKillOrders`, or `batchFillOrdersNoThrow`.
    /// @param ethFeeAmounts Amounts of ETH, denominated in Wei, that are paid to corresponding feeRecipients.
    /// @param feeRecipients Addresses that will receive ETH when orders are filled.
    /// @return fillResults Amounts filled and fees paid by the makers and taker.
    function batchBrokerTrade(
        uint256[] calldata brokeredTokenIds,
        LibOrder.Order[] calldata orders,
        uint256[] calldata takerAssetFillAmounts,
        bytes[] calldata signatures,
        bytes4 batchFillFunctionSelector,
        uint256[] calldata ethFeeAmounts,
        address payable[] calldata feeRecipients
    )
        external
        payable
        returns (LibFillResults.FillResults[] memory fillResults);

    /// @dev The Broker implements the ERC1155 transfer function to be compatible with the ERC1155 asset proxy
    /// @param from Since the Broker serves as the taker of the order, this should equal `address(this)`
    /// @param to This should be the maker of the order.
    /// @param amounts Should be an array of just one `uint256`, specifying the amount of the brokered assets to transfer.
    /// @param data Encodes the validator contract address and any auxiliary data it needs for property validation.
    function safeBatchTransferFrom(
        address from,
        address to,
        uint256[] calldata /* ids */,
        uint256[] calldata amounts,
        bytes calldata data
    )
        external;
}
// solhint-disable space-after-comma
function brokerTrade(
        uint256[] calldata brokeredTokenIds,
        LibOrder.Order calldata order,
        uint256 takerAssetFillAmount,
        bytes calldata signature,
        bytes4 fillFunctionSelector,
        uint256[] calldata ethFeeAmounts,
        address payable[] calldata feeRecipients
    )
        external
        payable
        returns (LibFillResults.FillResults memory fillResults);
/// @dev Fills a single property-based order by the given amount using the given assets.
///      Pays protocol fees using either the ETH supplied by the taker to the transaction or
///      WETH acquired from the maker during settlement. The final WETH balance is sent to the taker.
/// @param brokeredTokenIds Token IDs specified by the taker to be used to fill the orders.
/// @param order The property-based order to fill. The format of a property-based order is the
///        same as that of a normal order, except the takerAssetData. Instaed of specifying a
///        specific ERC721 asset, the takerAssetData should be ERC1155 assetData where the
///        underlying tokenAddress is this contract's address and the desired properties are
///        encoded in the extra data field. Also note that takerFees must be denominated in
///        WETH (or zero).
/// @param takerAssetFillAmount The amount to fill the order by.
/// @param signature The maker's signature of the given order.
/// @param fillFunctionSelector The selector for either `fillOrder` or `fillOrKillOrder`.
/// @param ethFeeAmounts Amounts of ETH, denominated in Wei, that are paid to corresponding feeRecipients.
/// @param feeRecipients Addresses that will receive ETH when orders are filled.
/// @return fillResults Amounts filled and fees paid by the maker and taker.