int256 amountToCollect = _getFeesBase(univ3pool, startingLiquidity, liquidityChunk).sub(
            s_accountFeesBase[positionKey]
        );
    feesBase = int256(0)
                .toRightSlot(int128(int256(Math.mulDiv128(feeGrowthInside0LastX128, liquidity))))
                .toLeftSlot(int128(int256(Math.mulDiv128(feeGrowthInside1LastX128, liquidity))));
