```\\nfunction swapToETH(uint256 _amount) internal {\\n    address[] memory path = new address[](2);\\n    path[0] = address(this);\\n    path[1] = uniswapRouter.WETH();\\n    _approve(address(this), address(uniswapRouter), _amount);\\n    uniswapRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(\\n        _amount,\\n        0,\\n        path,\\n        address(this),\\n        block.timestamp\\n    );\\n}\\n```\\n