    function leverageDownInternal(
        uint256 amount,
        IUSDOBase.ILeverageSwapData memory swapData,
        IUSDOBase.ILeverageExternalContractsData memory externalData,
        IUSDOBase.ILeverageLZData memory lzData,
        address leverageFor
    ) public payable {
        _unwrap(address(this), amount);

        //swap to USDO
        IERC20(erc20).approve(externalData.swapper, amount);
        ISwapper.SwapData memory _swapperData = ISwapper(externalData.swapper)
            .buildSwapData(erc20, swapData.tokenOut, amount, 0, false, false);
        (uint256 amountOut, ) = ISwapper(externalData.swapper).swap(
            _swapperData,
            swapData.amountOutMin,
            address(this),
            swapData.data
        );

        //@audit this call will fail as there is no market in destination chain
        //repay
        uint256 repayableAmount = IMagnetar(externalData.magnetar)
            .getBorrowPartForAmount(externalData.srcMarket, amountOut);
