function rebalance(uint256 directionMask, uint256 amountIn, uint256 amountOut) external nonReentrant {
    uint256 balanceBefore = IERC20(weth).balanceOf(address(this));
    bytes memory data = abi.encode(directionMask, amountIn, amountOut);
    IMorpho(morphoVault).flashLoan(weth, amountIn, data);
    uint256 balanceAfter = IERC20(weth).balanceOf(address(this));
    uint256 profit = balanceAfter - balanceBefore;
    require(profit > 0, "No profit made");
}
