        ICrvEthPool(CVX_ETH_CRV_POOL_ADDRESS).exchange_underlying{
            value: _ethAmountIn
        }(
            0,
            1,
            _ethAmountIn,
            0 // this is handled at the afEth level
        );
        ICrvEthPool(CVX_ETH_CRV_POOL_ADDRESS).exchange_underlying(
            1,
            0,
            _cvxAmountIn,
            0 // this is handled at the afEth level
        );
