```\nfunction _takeLiquidity(uint256 tLiquidity) private {\n    uint256 currentRate = _getRate();\n    uint256 rLiquidity = tLiquidity.mul(currentRate);\n    _rOwned[address(this)] = _rOwned[address(this)].add(rLiquidity);\n    if (_isExcluded[address(this)])\n        _tOwned[address(this)] = _tOwned[address(this)].add(tLiquidity);\n}\n```\n