creation_sourcecode: //
  
  //https://t.me/darwinerc
  //https://twitter.com/darwinerc
  //https://aidarwin.net 
  
  // SPDX-License-Identifier: MIT
  
  pragma solidity 0.8.17;
  
  interface IUniswapV2Factory {
      event PairCreated(address indexed token0, address indexed token1, address pair, uint);
  
      function feeTo() external view returns (address);
      function feeToSetter() external view returns (address);
      function getPair(address tokenA, address tokenB) external view returns (address pair);
      function allPairs(uint) external view returns (address pair);
      function allPairsLength() external view returns (uint);
      function createPair(address tokenA, address tokenB) external returns (address pair);
      function setFeeTo(address) external;
      function setFeeToSetter(address) external;
  }
  
  interface IUniswapV2Pair {
      event Approval(address indexed owner, address indexed spender, uint value);
      event Transfer(address indexed from, address indexed to, uint value);
  
      function name() external pure returns (string memory);
      function symbol() external pure returns (string memory);
      function decimals() external pure returns (uint8);
      function totalSupply() external view returns (uint);
      function balanceOf(address owner) external view returns (uint);
      function allowance(address owner, address spender) external view returns (uint);
  
      function approve(address spender, uint value) external returns (bool);
      function transfer(address to, uint value) external returns (bool);
      function transferFrom(address from, address to, uint value) external returns (bool);
  
      function DOMAIN_SEPARATOR() external view returns (bytes32);
      function PERMIT_TYPEHASH() external pure returns (bytes32);
      function nonces(address owner) external view returns (uint);
  
      function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
  
      event Mint(address indexed sender, uint amount0, uint amount1);
      event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
      event Swap(
          address indexed sender,
          uint amount0In,
          uint amount1In,
          uint amount0Out,
          uint amount1Out,
          address indexed to
      );
      event Sync(uint112 reserve0, uint112 reserve1);
  
      function MINIMUM_LIQUIDITY() external pure returns (uint);
      function factory() external view returns (address);
      function token0() external view returns (address);
      function token1() external view returns (address);
      function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);
      function price0CumulativeLast() external view returns (uint);
      function price1CumulativeLast() external view returns (uint);
      function kLast() external view returns (uint);
  
      function mint(address to) external returns (uint liquidity);
      function burn(address to) external returns (uint amount0, uint amount1);
      function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external;
      function skim(address to) external;
      function sync() external;
  
      function initialize(address, address) external;
  }
  
  interface IUniswapV2Router01 {
      function factory() external pure returns (address);
      function WETH() external pure returns (address);
  
      function addLiquidity(
          address tokenA,
          address tokenB,
          uint amountADesired,
          uint amountBDesired,
          uint amountAMin,
          uint amountBMin,
          address to,
          uint deadline
      ) external returns (uint amountA, uint amountB, uint liquidity);
      function addLiquidityETH(
          address token,
          uint amountTokenDesired,
          uint amountTokenMin,
          uint amountETHMin,
          address to,
          uint deadline
      ) external payable returns (uint amountToken, uint amountETH, uint liquidity);
      function removeLiquidity(
          address tokenA,
          address tokenB,
          uint liquidity,
          uint amountAMin,
          uint amountBMin,
          address to,
          uint deadline
      ) external returns (uint amountA, uint amountB);
      function removeLiquidityETH(
          address token,
          uint liquidity,
          uint amountTokenMin,
          uint amountETHMin,
          address to,
          uint deadline
      ) external returns (uint amountToken, uint amountETH);
      function removeLiquidityWithPermit(
          address tokenA,
          address tokenB,
          uint liquidity,
          uint amountAMin,
          uint amountBMin,
          address to,
          uint deadline,
          bool approveMax, uint8 v, bytes32 r, bytes32 s
      ) external returns (uint amountA, uint amountB);
      function removeLiquidityETHWithPermit(
          address token,
          uint liquidity,
          uint amountTokenMin,
          uint amountETHMin,
          address to,
          uint deadline,
          bool approveMax, uint8 v, bytes32 r, bytes32 s
      ) external returns (uint amountToken, uint amountETH);
      function swapExactTokensForTokens(
          uint amountIn,
          uint amountOutMin,
          address[] calldata path,
          address to,
          uint deadline
      ) external returns (uint[] memory amounts);
      function swapTokensForExactTokens(
          uint amountOut,
          uint amountInMax,
          address[] calldata path,
          address to,
          uint deadline
      ) external returns (uint[] memory amounts);
      function swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline)
          external
          payable
          returns (uint[] memory amounts);
      function swapTokensForExactETH(uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline)
          external
          returns (uint[] memory amounts);
      function swapExactTokensForETH(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline)
          external
          returns (uint[] memory amounts);
      function swapETHForExactTokens(uint amountOut, address[] calldata path, address to, uint deadline)
          external
          payable
          returns (uint[] memory amounts);
  
      function quote(uint amountA, uint reserveA, uint reserveB) external pure returns (uint amountB);
      function getAmountOut(uint amountIn, uint reserveIn, uint reserveOut) external pure returns (uint amountOut);
      function getAmountIn(uint amountOut, uint reserveIn, uint reserveOut) external pure returns (uint amountIn);
      function getAmountsOut(uint amountIn, address[] calldata path) external view returns (uint[] memory amounts);
      function getAmountsIn(uint amountOut, address[] calldata path) external view returns (uint[] memory amounts);
  }
  
  interface IUniswapV2Router02 is IUniswapV2Router01 {
      function removeLiquidityETHSupportingFeeOnTransferTokens(
          address token,
          uint liquidity,
          uint amountTokenMin,
          uint amountETHMin,
          address to,
          uint deadline
      ) external returns (uint amountETH);
      function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(
          address token,
          uint liquidity,
          uint amountTokenMin,
          uint amountETHMin,
          address to,
          uint deadline,
          bool approveMax, uint8 v, bytes32 r, bytes32 s
      ) external returns (uint amountETH);
  
      function swapExactTokensForTokensSupportingFeeOnTransferTokens(
          uint amountIn,
          uint amountOutMin,
          address[] calldata path,
          address to,
          uint deadline
      ) external;
      function swapExactETHForTokensSupportingFeeOnTransferTokens(
          uint amountOutMin,
          address[] calldata path,
          address to,
          uint deadline
      ) external payable;
      function swapExactTokensForETHSupportingFeeOnTransferTokens(
          uint amountIn,
          uint amountOutMin,
          address[] calldata path,
          address to,
          uint deadline
      ) external;
  }
  
  interface IERC20 {
      function totalSupply() external view returns (uint256);
      function balanceOf(address account) external view returns (uint256);
      function transfer(address recipient, uint256 amount) external returns (bool);
      function allowance(address owner, address spender) external view returns (uint256);
      function approve(address spender, uint256 amount) external returns (bool);
      function transferFrom(
          address sender,
          address recipient,
          uint256 amount
      ) external returns (bool);
     
      event Transfer(address indexed from, address indexed to, uint256 value);
      event Approval(address indexed owner, address indexed spender, uint256 value);
  }
  
  interface IERC20Metadata is IERC20 {
      function name() external view returns (string memory);
      function symbol() external view returns (string memory);
      function decimals() external view returns (uint8);
  }
  
  library Address {
      function isContract(address account) internal view returns (bool) {
          return account.code.length > 0;
      }
  
      function sendValue(address payable recipient, uint256 amount) internal returns(bool){
          require(address(this).balance >= amount, "Address: insufficient balance");
  
          (bool success, ) = recipient.call{value: amount}("");
          return success;
      }
  
      function functionCall(address target, bytes memory data) internal returns (bytes memory) {
          return functionCallWithValue(target, data, 0, "Address: low-level call failed");
      }
  
      function functionCall(
          address target,
          bytes memory data,
          string memory errorMessage
      ) internal returns (bytes memory) {
          return functionCallWithValue(target, data, 0, errorMessage);
      }
  
      function functionCallWithValue(
          address target,
          bytes memory data,
          uint256 value
      ) internal returns (bytes memory) {
          return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
      }
  
      function functionCallWithValue(
          address target,
          bytes memory data,
          uint256 value,
          string memory errorMessage
      ) internal returns (bytes memory) {
          require(address(this).balance >= value, "Address: insufficient balance for call");
          (bool success, bytes memory returndata) = target.call{value: value}(data);
          return verifyCallResultFromTarget(target, success, returndata, errorMessage);
      }
  
      function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
          return functionStaticCall(target, data, "Address: low-level static call failed");
      }
  
      function functionStaticCall(
          address target,
          bytes memory data,
          string memory errorMessage
      ) internal view returns (bytes memory) {
          (bool success, bytes memory returndata) = target.staticcall(data);
          return verifyCallResultFromTarget(target, success, returndata, errorMessage);
      }
  
      function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
          return functionDelegateCall(target, data, "Address: low-level delegate call failed");
      }
  
      function functionDelegateCall(
          address target,
          bytes memory data,
          string memory errorMessage
      ) internal returns (bytes memory) {
          (bool success, bytes memory returndata) = target.delegatecall(data);
          return verifyCallResultFromTarget(target, success, returndata, errorMessage);
      }
  
      function verifyCallResultFromTarget(
          address target,
          bool success,
          bytes memory returndata,
          string memory errorMessage
      ) internal view returns (bytes memory) {
          if (success) {
              if (returndata.length == 0) {
                  // only check isContract if the call was successful and the return data is empty
                  // otherwise we already know that it was a contract
                  require(isContract(target), "Address: call to non-contract");
              }
              return returndata;
          } else {
              _revert(returndata, errorMessage);
          }
      }
  
      function verifyCallResult(
          bool success,
          bytes memory returndata,
          string memory errorMessage
      ) internal pure returns (bytes memory) {
          if (success) {
              return returndata;
          } else {
              _revert(returndata, errorMessage);
          }
      }
  
      function _revert(bytes memory returndata, string memory errorMessage) private pure {
          // Look for revert reason and bubble it up if present
          if (returndata.length > 0) {
              // The easiest way to bubble the revert reason is using memory via assembly
              /// @solidity memory-safe-assembly
              assembly {
                  let returndata_size := mload(returndata)
                  revert(add(32, returndata), returndata_size)
              }
          } else {
              revert(errorMessage);
          }
      }
  }
  
  abstract contract Context {
      function _msgSender() internal view virtual returns (address) {
          return msg.sender;
      }
  
      function _msgData() internal view virtual returns (bytes calldata) {
          this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
          return msg.data;
      }
  }
  
  abstract contract Ownable is Context {
      address private _owner;
  
      event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
  
      constructor () {
          address msgSender = _msgSender();
          _owner = msgSender;
          emit OwnershipTransferred(address(0), msgSender);
      }
  
      function owner() public view returns (address) {
          return _owner;
      }
  
      modifier onlyOwner() {
          require(_owner == _msgSender(), "Ownable: caller is not the owner");
          _;
      }
  
      function renounceOwnership() public virtual onlyOwner {
          emit OwnershipTransferred(_owner, address(0));
          _owner = address(0);
      }
  
      function transferOwnership(address newOwner) public virtual onlyOwner {
          require(newOwner != address(0), "Ownable: new owner is the zero address");
          emit OwnershipTransferred(_owner, newOwner);
          _owner = newOwner;
      }
  }
  
  contract ERC20 is Context, IERC20, IERC20Metadata {
      mapping(address => uint256) private _balances;
  
      mapping(address => mapping(address => uint256)) private _allowances;
  
      uint256 private _totalSupply;
  
      string private _name;
      string private _symbol;
  
      constructor(string memory name_, string memory symbol_) {
          _name = name_;
          _symbol = symbol_;
      }
  
      function name() public view virtual override returns (string memory) {
          return _name;
      }
  
      function symbol() public view virtual override returns (string memory) {
          return _symbol;
      }
  
      function decimals() public view virtual override returns (uint8) {
          return 18;
      }
  
      function totalSupply() public view virtual override returns (uint256) {
          return _totalSupply;
      }
  
      function balanceOf(address account) public view virtual override returns (uint256) {
          return _balances[account];
      }
  
      function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
          _transfer(_msgSender(), recipient, amount);
          return true;
      }
  
      function allowance(address owner, address spender) public view virtual override returns (uint256) {
          return _allowances[owner][spender];
      }
  
      function approve(address spender, uint256 amount) public virtual override returns (bool) {
          _approve(_msgSender(), spender, amount);
          return true;
      }
  
      function transferFrom(
          address sender,
          address recipient,
          uint256 amount
      ) public virtual override returns (bool) {
          uint256 currentAllowance = _allowances[sender][_msgSender()];
          if (currentAllowance != type(uint256).max) {
              require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
              unchecked {
                  _approve(sender, _msgSender(), currentAllowance - amount);
              }
          }
  
          _transfer(sender, recipient, amount);
  
          return true;
      }
  
      function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
          _approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);
          return true;
      }
  
      function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
          uint256 currentAllowance = _allowances[_msgSender()][spender];
          require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
          unchecked {
              _approve(_msgSender(), spender, currentAllowance - subtractedValue);
          }
  
          return true;
      }
  
      function _transfer(
          address sender,
          address recipient,
          uint256 amount
      ) internal virtual {
          require(sender != address(0), "ERC20: transfer from the zero address");
          require(recipient != address(0), "ERC20: transfer to the zero address");
  
          _beforeTokenTransfer(sender, recipient, amount);
  
          uint256 senderBalance = _balances[sender];
          require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
          unchecked {
              _balances[sender] = senderBalance - amount;
          }
          _balances[recipient] += amount;
  
          emit Transfer(sender, recipient, amount);
  
          _afterTokenTransfer(sender, recipient, amount);
      }
  
      function _mint(address account, uint256 amount) internal virtual {
          require(account != address(0), "ERC20: mint to the zero address");
  
          _beforeTokenTransfer(address(0), account, amount);
  
          _totalSupply += amount;
          _balances[account] += amount;
          emit Transfer(address(0), account, amount);
  
          _afterTokenTransfer(address(0), account, amount);
      }
  
      function _burn(address account, uint256 amount) internal virtual {
          require(account != address(0), "ERC20: burn from the zero address");
  
          _beforeTokenTransfer(account, address(0), amount);
  
          uint256 accountBalance = _balances[account];
          require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
          unchecked {
              _balances[account] = accountBalance - amount;
          }
          _totalSupply -= amount;
  
          emit Transfer(account, address(0), amount);
  
          _afterTokenTransfer(account, address(0), amount);
      }
  
      function _approve(
          address owner,
          address spender,
          uint256 amount
      ) internal virtual {
          require(owner != address(0), "ERC20: approve from the zero address");
          require(spender != address(0), "ERC20: approve to the zero address");
  
          _allowances[owner][spender] = amount;
          emit Approval(owner, spender, amount);
      }
  
      function _beforeTokenTransfer(
          address from,
          address to,
          uint256 amount
      ) internal virtual {}
  
      function _afterTokenTransfer(
          address from,
          address to,
          uint256 amount
      ) internal virtual {}
  }
  
  contract DARWINAI is ERC20, Ownable {
      using Address for address payable;
  
      IUniswapV2Router02 public uniswapV2Router;
      address public  uniswapV2Pair;
  
      mapping (address => bool) private _isExcludedFromFees;
  
      string  public creator;
  
      uint256 public  marketingFeeOnBuy;
      uint256 public  marketingFeeOnSell;
  
      uint256 public  walletToWalletTransferFee;
  
      address public  marketingWallet;
  
      uint256 public  swapTokensAtAmount;
      bool    private swapping;
  
      bool    public swapEnabled;
  
      event ExcludeFromFees(address indexed account, bool isExcluded);
      event MarketingWalletChanged(address marketingWallet);
      event UpdateBuyFees(uint256 marketingFeeOnBuy);
      event UpdateSellFees(uint256 marketingFeeOnSell);
      event UpdateWalletToWalletTransferFee(uint256 walletToWalletTransferFee);
      event SwapAndSendMarketing(uint256 tokensSwapped, uint256 bnbSend);
      event SwapTokensAtAmountUpdated(uint256 swapTokensAtAmount);
  
      constructor () ERC20(unicode"DARWINAI", "DARWIN AI") 
      {   
          address router;
          if (block.chainid == 56) {
              router = 0x10ED43C718714eb63d5aA57B78B54704E256024E; // BSC Pancake Mainnet Router
          } else if (block.chainid == 97) {
              router = 0xD99D1c33F9fC3444f8101754aBC46c52416550D1; // BSC Pancake Testnet Router
          } else if (block.chainid == 1 || block.chainid == 5) {
              router = 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D; // ETH Uniswap Mainnet % Testnet
          } else {
              revert();
          }
  
          IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(router);
          address _uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory())
              .createPair(address(this), _uniswapV2Router.WETH());
  
          uniswapV2Router = _uniswapV2Router;
          uniswapV2Pair   = _uniswapV2Pair;
  
          _approve(address(this), address(uniswapV2Router), type(uint256).max);
  
          creator = "";
  
          marketingFeeOnBuy  = 50;
          marketingFeeOnSell = 50;
  
          walletToWalletTransferFee = 0;
  
          marketingWallet = 0xF88899c9E0972a262313aFEbe840EC796bAf77cd;
  
          maxTransactionLimitEnabled = true;
  
          _isExcludedFromMaxTxLimit[owner()] = true;
          _isExcludedFromMaxTxLimit[address(this)] = true;
          _isExcludedFromMaxTxLimit[address(0xdead)] = true;
          _isExcludedFromMaxTxLimit[marketingWallet] = true;
  
          _isExcludedFromFees[owner()] = true;
          _isExcludedFromFees[address(0xdead)] = true;
          _isExcludedFromFees[address(this)] = true;
  
          _mint(owner(), 1e10 * (10 ** decimals()));
          swapTokensAtAmount = totalSupply() / 5_000;
  	
          maxTransactionAmountBuy     = totalSupply() * 100 / 1000;
          maxTransactionAmountSell    = totalSupply() * 100 / 1000;
  	
  
          tradingEnabled = false;
          swapEnabled = false;
      }
  
      receive() external payable {
  
    	}
  
      function claimStuckTokens(address token) external onlyOwner {
          require(token != address(this), "Owner cannot claim contract's balance of its own tokens");
          if (token == address(0x0)) {
              payable(msg.sender).sendValue(address(this).balance);
              return;
          }
          IERC20 ERC20token = IERC20(token);
          uint256 balance = ERC20token.balanceOf(address(this));
          ERC20token.transfer(msg.sender, balance);
      }
  
      function excludeFromFees(address account, bool excluded) external onlyOwner{
          require(_isExcludedFromFees[account] != excluded,"Account is already the value of 'excluded'");
          _isExcludedFromFees[account] = excluded;
  
          emit ExcludeFromFees(account, excluded);
      }
  
      function isExcludedFromFees(address account) public view returns(bool) {
          return _isExcludedFromFees[account];
      }
  
      function updateBuyFees(uint256 _marketingFeeOnBuy) external onlyOwner {
          marketingFeeOnBuy = _marketingFeeOnBuy;
  
          require(marketingFeeOnBuy <= 50, "Total Fees cannot exceed the maximum");
  
          emit UpdateBuyFees(marketingFeeOnBuy);
      }
  
      function updateSellFees(uint256 _marketingFeeOnSell) external onlyOwner {
          marketingFeeOnSell = _marketingFeeOnSell;
  
          require(marketingFeeOnSell <= 50, "Total Fees cannot exceed the maximum");
  
          emit UpdateSellFees(marketingFeeOnSell);
      }
  
      function updateWalletToWalletTransferFee(uint256 _walletToWalletTransferFee) external onlyOwner {
          require(_walletToWalletTransferFee <= 5, "Wallet to Wallet Transfer Fee cannot exceed the maximum");
          walletToWalletTransferFee = _walletToWalletTransferFee;
  
          emit UpdateWalletToWalletTransferFee(walletToWalletTransferFee);
      }
  
      function changeMarketingWallet(address _marketingWallet) external onlyOwner{
          require(_marketingWallet != marketingWallet,"Marketing wallet is already that address");
          require(_marketingWallet != address(0),"Marketing wallet cannot be the zero address");
          marketingWallet = _marketingWallet;
  
          emit MarketingWalletChanged(marketingWallet);
      }
  
      bool public tradingEnabled;
  
      function enableTrading() external onlyOwner{
          require(!tradingEnabled, "Trading already enabled.");
          tradingEnabled = true;
          swapEnabled = true;
      }
  
      function _transfer(address from,address to,uint256 amount) internal  override {
          require(from != address(0), "ERC20: transfer from the zero address");
          require(to != address(0), "ERC20: transfer to the zero address");
          require(tradingEnabled || _isExcludedFromFees[from] || _isExcludedFromFees[to], "Trading not yet enabled!");
         
          if (amount == 0) {
              super._transfer(from, to, 0);
              return;
          }
  
          if (maxTransactionLimitEnabled) 
          {
              if ((from == uniswapV2Pair || to == uniswapV2Pair) &&
                  !_isExcludedFromMaxTxLimit[from] && 
                  !_isExcludedFromMaxTxLimit[to]
              ) {
                  if (from == uniswapV2Pair) {
                      require(
                          amount <= maxTransactionAmountBuy,  
                          "AntiWhale: Transfer amount exceeds the maxTransactionAmount"
                      );
                  } else {
                      require(
                          amount <= maxTransactionAmountSell, 
                          "AntiWhale: Transfer amount exceeds the maxTransactionAmount"
                      );
                  }
              }
          }
  
  		uint256 contractTokenBalance = balanceOf(address(this));
  
          bool canSwap = contractTokenBalance >= swapTokensAtAmount;
  
          if (canSwap &&
              !swapping &&
              to == uniswapV2Pair &&
              swapEnabled
          ) {
              swapping = true;
  
              swapAndSendMarketing(contractTokenBalance);
  
              swapping = false;
          }
  
          uint256 _totalFees;
          if (_isExcludedFromFees[from] || _isExcludedFromFees[to] || swapping) {
              _totalFees = 0;
          } else if (from == uniswapV2Pair) {
              _totalFees = marketingFeeOnBuy;
          } else if (to == uniswapV2Pair) {
              _totalFees = marketingFeeOnSell;
          } else {
              _totalFees = walletToWalletTransferFee;
          }
  
          if (_totalFees > 0) {
              uint256 fees = (amount * _totalFees) / 100;
              amount = amount - fees;
              super._transfer(from, address(this), fees);
          }
  
          super._transfer(from, to, amount);
      }
  
      function setSwapEnabled(bool _enabled) external onlyOwner{
          require(swapEnabled != _enabled, "swapEnabled already at this state.");
          swapEnabled = _enabled;
      }
  
      function setSwapTokensAtAmount(uint256 newAmount) external onlyOwner{
          require(newAmount > totalSupply() / 1_000_000, "SwapTokensAtAmount must be greater than 0.0001% of total supply");
          swapTokensAtAmount = newAmount;
  
          emit SwapTokensAtAmountUpdated(swapTokensAtAmount);
      }
  
      function swapAndSendMarketing(uint256 tokenAmount) private {
          uint256 initialBalance = address(this).balance;
  
          address[] memory path = new address[](2);
          path[0] = address(this);
          path[1] = uniswapV2Router.WETH();
  
          uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
              tokenAmount,
              0,
              path,
              address(this),
              block.timestamp);
  
          uint256 newBalance = address(this).balance - initialBalance;
  
          payable(marketingWallet).sendValue(newBalance);
  
          emit SwapAndSendMarketing(tokenAmount, newBalance);
      }
  
      mapping(address => bool) private _isExcludedFromMaxTxLimit;
      bool    public  maxTransactionLimitEnabled;
      uint256 public  maxTransactionAmountBuy;
      uint256 public  maxTransactionAmountSell;
  
      event ExcludedFromMaxTransactionLimit(address indexed account, bool isExcluded);
      event MaxTransactionLimitStateChanged(bool maxTransactionLimit);
      event MaxTransactionLimitAmountChanged(uint256 maxTransactionAmountBuy, uint256 maxTransactionAmountSell);
  
      function setEnableMaxTransactionLimit(bool enable) external onlyOwner {
          require(enable != maxTransactionLimitEnabled, "Max transaction limit is already set to that state");
          maxTransactionLimitEnabled = enable;
  
          emit MaxTransactionLimitStateChanged(maxTransactionLimitEnabled);
      }
  
      function setMaxTransactionAmounts(uint256 _maxTransactionAmountBuy, uint256 _maxTransactionAmountSell) external onlyOwner {
          require(
              _maxTransactionAmountBuy  >= (totalSupply() / (10 ** decimals())) / 1_000 && 
              _maxTransactionAmountSell >= (totalSupply() / (10 ** decimals())) / 1_000, 
              "Max Transaction limis cannot be lower than 0.1% of total supply"
          ); 
          maxTransactionAmountBuy  = _maxTransactionAmountBuy  * (10 ** decimals());
          maxTransactionAmountSell = _maxTransactionAmountSell * (10 ** decimals());
  
          emit MaxTransactionLimitAmountChanged(maxTransactionAmountBuy, maxTransactionAmountSell);
      }
  
      function excludeFromMaxTransactionLimit(address account, bool exclude) external onlyOwner {
          require( _isExcludedFromMaxTxLimit[account] != exclude, "Account is already set to that state");
          require(account != address(this), "Can't set this address.");
  
          _isExcludedFromMaxTxLimit[account] = exclude;
  
          emit ExcludedFromMaxTransactionLimit(account, exclude);
      }
  
      function isExcludedFromMaxTransaction(address account) public view returns(bool) {
          return _isExcludedFromMaxTxLimit[account];
      }
  }