```\nfunction updateBuyFees(uint256 _marketingFee, uint256 _liquidityFee, uint256 _devFee) external onlyOwner {\n    buyMarketingFee = _marketingFee;\n    buyLiquidityFee = _liquidityFee;\n    buyDevFee = _devFee;\n    buyTotalFees = buyMarketingFee + buyLiquidityFee + buyDevFee;\n    require(buyTotalFees <= 50, "Must keep fees at 50% or less");\n}\n```\n