/**


https://ripftx.com/

 
*/
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
abstract contract Context {
 function _msgSender() internal view virtual returns (address) {
     return msg.sender;
 }
 function _msgData() internal view virtual returns (bytes calldata) {
     return msg.data;
 }
}
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);
}
library Address {
 function isContract(address account) internal view returns (bool) {
     // According to EIP-1052, 0x0 is the value returned for not-yet created accounts
     // and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned
     // for accounts without code, i.e. `keccak256('')`
     bytes32 codehash;
     bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
     // solhint-disable-next-line no-inline-assembly
     assembly { codehash := extcodehash(account) }
     return (codehash != accountHash && codehash != 0x0);
 }
 function sendValue(address payable recipient, uint256 amount) internal {
     require(address(this).balance >= amount, "Address: insufficient balance");
     // solhint-disable-next-line avoid-low-level-calls, avoid-call-value
     (bool success, ) = recipient.call{ value: amount }("");
     require(success, "Address: unable to send value, recipient may have reverted");
 }
 function functionCall(address target, bytes memory data) internal returns (bytes memory) {
   return functionCall(target, data, "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");
     return _functionCallWithValue(target, data, value, errorMessage);
 }
 function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) {
     require(isContract(target), "Address: call to non-contract");
     (bool success, bytes memory returndata) = target.call{ value: weiValue }(data);
     if (success) {
         return returndata;
     } else {
      
         if (returndata.length > 0) {
             assembly {
                 let returndata_size := mload(returndata)
                 revert(add(32, returndata), returndata_size)
             }
         } else {
             revert(errorMessage);
         }
     }
 }
}
abstract contract Ownable is Context {
 address private _owner;
 event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
 /**
  * @dev Initializes the contract setting the deployer as the initial owner.
  */
 constructor() {
     _setOwner(_msgSender());
 }
 /**
  * @dev Returns the address of the current owner.
  */
 function owner() public view virtual returns (address) {
     return _owner;
 }
 /**
  * @dev Throws if called by any account other than the owner.
  */
 modifier onlyOwner() {
     require(owner() == _msgSender(), "Ownable: caller is not the owner");
     _;
 }
 /**
  * @dev Leaves the contract without owner. It will not be possible to call
  * `onlyOwner` functions anymore. Can only be called by the current owner.
  *
  * NOTE: Renouncing ownership will leave the contract without an owner,
  * thereby removing any functionality that is only available to the owner.
  */
 function renounceOwnership() public virtual onlyOwner {
     _setOwner(address(0));
 }
 /**
  * @dev Transfers ownership of the contract to a new account (`newOwner`).
  * Can only be called by the current owner.
  */
 function transferOwnership(address newOwner) public virtual onlyOwner {
     require(newOwner != address(0), "Ownable: new owner is the zero address");
     _setOwner(newOwner);
 }
 function _setOwner(address newOwner) private {
     address oldOwner = _owner;
     _owner = newOwner;
     emit OwnershipTransferred(oldOwner, newOwner);
 }
}
contract RIP is Context,IERC20, Ownable{
 using Address for address;
 string private _name = "R.I.P FTX";
 string private _symbol = "$RIP";
 uint8 private _decimals = 18;
 uint256 totalFeeFortx = 0;
   uint256 maxWalletTreshold = 3;
 uint256 maxTxTreshold = 1;
 uint256 private swapTreshold =1;
 uint256 private currentThreshold = 20; //Once the token value goes up this number can be decreased (To reduce price impact on asset)
 uint256 private _totalSupply = (10000000 * 10**4) * 10**_decimals; //
 uint256 public requiredTokensToSwap = _totalSupply * swapTreshold /1000;
 mapping (address => uint256) private _balances;
 mapping (address => bool) private _excludedFromFees;
 mapping (address => mapping (address => uint256)) private _allowances;
 mapping (address => bool) public automatedMarketMakerPairs;
 address _owner;
 address payable public marketingAddress = payable(0x4d79C1E31d7B3f77742129A793386eE26aBDD9F0);
 uint256 maxWalletAmount = _totalSupply*maxWalletTreshold/300; // starting 3%
 uint256 maxTxAmount = _totalSupply*maxTxTreshold/100;
 mapping (address => bool) botWallets;
 bool botTradeEnabled = false;
 bool checkWalletSize = true;
 mapping (address => bool) private _liquidityHolders;
 mapping (address => bool) private presaleAddresses;
 //Taxes and more 
 uint256 private buyliqFee = 1; //1
 uint256 private buyprevLiqFee = 1;
 uint256 private buymktFee = 4;//4
 uint256 private buyPrevmktFee = 4;
 uint256 SAINTELONDaycooldown = 0;
 bool private tradeEnabled = false;
  uint256 private sellliqFee = 1;
 uint256 private sellprevLiqFee = 1;
 uint256 private sellmktFee = 4;
 uint256 private sellPrevmktFee = 4;
  bool public inSwapAndLiquify;
 bool public swapAndLiquifyEnabled = true;
 address public immutable deadAddress = 0x000000000000000000000000000000000000dEaD;
 uint256 private mktTokens = 0;
 uint256 private liqTokens = 0;
  event SwapAndLiquify(uint256 tokensSwapped,
     uint256 ethReceived,
     uint256 tokensIntoLiquidity
 );
 event tokensSwappedDuringTokenomics(uint256 amount);
 event SetAutomatedMarketMakerPair(address indexed pair, bool indexed value);
  // 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D
 IUniswapV2Router02 _router;
 address public uniswapV2Pair;
 //Balances tracker
 modifier lockTheSwap{
     inSwapAndLiquify = true;
     _;
     inSwapAndLiquify = false;
 }
  constructor(){
     _balances[_msgSender()] = _totalSupply;
     //0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D mainnet and all networks
     IUniswapV2Router02 _uniRouter = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
  
     uniswapV2Pair = IUniswapV2Factory(_uniRouter.factory())
         .createPair(address(this), _uniRouter.WETH());
  
     _excludedFromFees[owner()] = true;      
     _excludedFromFees[address(this)] = true;// exclude owner and contract instance from fees
     _router = _uniRouter;
     _liquidityHolders[address(_router)] = true;
     _liquidityHolders[owner()] = true;
     _liquidityHolders[address(this)] = true;
     _setAutomatedMarketMakerPair(address(uniswapV2Pair), true);
     emit Transfer(address(0),_msgSender(),_totalSupply);
 }
 receive() external payable{}
 //general token data and tracking of balances to be swapped.
 function getOwner()external view returns(address){
         return owner();
 }
 function currentmktTokens() external view returns (uint256){
         return mktTokens;
  }
  function currentLiqTokens() external view returns (uint256){
         return liqTokens;
  }
  function totalSupply() external view override returns (uint256){
         return _totalSupply;
  }
 function balanceOf(address account) public view override returns (uint256){
     return _balances[account];
 }
 function transfer(address recipient, uint256 amount) external override returns (bool){
         _transfer(_msgSender(),recipient,amount);
         return true;
 }
 function allowance(address owner, address spender) external view override returns (uint256){
         return _allowances[owner][spender];
 }
 function approve(address spender, uint256 amount) external override returns (bool){
         _approve(_msgSender(),spender,amount);
         return true;
 }
 function decimals()external view returns(uint256){
     return _decimals;
 }
 function name() external view returns (string memory) {
     return _name;
 }
 function symbol() external view returns (string memory){
     return _symbol;
 }
     function updateMaxTxTreshold(uint256 newVal) public onlyOwner{
     maxTxTreshold = newVal;
     maxTxAmount = _totalSupply*maxTxTreshold/100;// 1%
 }
  function updateMaxWalletTreshold(uint256 newVal) public onlyOwner{
     maxWalletTreshold = newVal;
     maxWalletAmount = _totalSupply*maxWalletTreshold/300;
 }
  function transferFrom(
     address sender,
     address recipient,
     uint256 amount
 ) public override returns (bool){
     require(amount <= _allowances[sender][_msgSender()], "ERC20: transfer amount exceeds allowance");
     _transfer(sender, recipient, amount);
     _approve(sender, _msgSender(), _allowances[sender][_msgSender()] - amount);
     return true;
 }
 //Tokenomics related functions
  function SAINTELONDay() public onlyOwner{
      require(block.timestamp > SAINTELONDaycooldown, "You cant call SAINTELONCoinDay more than once a day");
      buyPrevmktFee = buymktFee;
      buyprevLiqFee = buyliqFee;
 
      buyliqFee = 0;
      buymktFee = 0;
 }
 function SAINTELONCoinDayOver() public onlyOwner{
      buyliqFee = buyprevLiqFee;
      buymktFee = buyPrevmktFee;
      SAINTELONDaycooldown = block.timestamp + 86400;
 }
 function addBotWallet (address payable detectedBot, bool isBot) public onlyOwner{
     botWallets[detectedBot] = isBot;
 }
 function currentbuyliqFee() public view returns (uint256){
         return buyliqFee;
 }
 function currentbuymktfee() public view returns (uint256){
         return buymktFee;
 }
   function currentsellLiqFee() public view returns (uint256){
         return sellliqFee;
 }
 function currentsellmktfee() public view returns (uint256){
         return sellmktFee;
 }
 function currentThresholdInt()public view returns (uint256){
     return currentThreshold;
 }
 function isExcluded(address toCheck)public view returns (bool){
         return _excludedFromFees[toCheck];
 }
 function _transfer(address from, address to, uint256 amount) internal{
  
     require(from != address(0), "ERC20: transfer from the zero address");
     require(to != address(0), "ERC20: transfer to the zero address");
     require(amount > 0,"ERC20: transfered amount must be greater than zero");
     uint256 senderBalance = _balances[from];
     require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
     if(tradeEnabled == false){
         require(_liquidityHolders[to] || _liquidityHolders[from],"Cant trade, trade is disabled");
     }
     if(_liquidityHolders[to]==false && _liquidityHolders[from]==false){
     require(amount <= maxTxAmount, "Transfer amount exceeds the maxTxAmount.");
      if(from == uniswapV2Pair){
             require(balanceOf(to)+amount <= maxWalletAmount);
         }
     }
     uint256 inContractBalance = balanceOf(address(this));
     if(inContractBalance >=requiredTokensToSwap &&
         !inSwapAndLiquify &&
         from != uniswapV2Pair &&
         swapAndLiquifyEnabled){
             if(inContractBalance >= requiredTokensToSwap ){
                 inContractBalance = requiredTokensToSwap;
                 swapForTokenomics(inContractBalance);
             }
         }
         bool takeFees = true;
      
      
         if(_excludedFromFees[from] || _excludedFromFees[to]) {
             totalFeeFortx = 0;
             takeFees = false;
         
         }
         uint256 mktAmount = 0;
         uint256 liqAmount = 0;  // Amount to be added to liquidity.
         if(takeFees){
          
          
             //bot fees
             if(botWallets[from] == true||botWallets[to]==true){
                 revert("No bots can trade");
             }
             //Selling fees
             if (automatedMarketMakerPairs[to] && to != address(_router) ){
                     totalFeeFortx = 0;
                     mktAmount = amount * sellmktFee/100;
                     liqAmount = amount * sellliqFee/100;
                     totalFeeFortx = mktAmount + liqAmount;
             }
             //Buy Fees
             else if(automatedMarketMakerPairs[from] && from != address(_router)) {
          
                 totalFeeFortx = 0;
                 mktAmount = amount * buymktFee/100;
                 liqAmount = amount * buyliqFee/100;
                 totalFeeFortx = mktAmount + liqAmount ;
             }
          
         }
         _balances[from] = senderBalance - amount;
         _balances[to] += amount - mktAmount - liqAmount;
       if(liqAmount != 0) {
         _balances[address(this)] += totalFeeFortx;
         //tLiqTotal += liqAmount;
         liqTokens += liqAmount;
         mktTokens += mktAmount;
         emit Transfer(from, address(this), totalFeeFortx);
      
         }
         emit Transfer(from, to,amount-totalFeeFortx);
      
  
 }
 function swapForTokenomics(uint256 balanceToswap) private lockTheSwap{
     swapAndLiquify(liqTokens);
     swapTokensForETHmkt(mktTokens);
     emit tokensSwappedDuringTokenomics(balanceToswap);
     mktTokens = 0;
     liqTokens = 0;
 }
  function addLimitExempt(address newAddress)external onlyOwner{
     _liquidityHolders[newAddress] = true;
 }
 function swapTokensForETHmkt(uint256 amount)private {
     address[] memory path = new address[](2);
     path[0] = address(this);
     path[1] = _router.WETH();
     _approve(address(this), address(_router), amount);
  
     _router.swapExactTokensForETHSupportingFeeOnTransferTokens(
         amount,
         0, // Accept any amount of ETH.
         path,
         marketingAddress,
         block.timestamp
     );
 }
 function unstuckTokens (IERC20 tokenToClear, address payable destination, uint256 amount) public onlyOwner{
     //uint256 contractBalance = tokenToClear.balanceOf(address(this));
     tokenToClear.transfer(destination, amount);
 }
 function unstuckETH(address payable destination) public onlyOwner{
     uint256 ethBalance = address(this).balance;
     payable(destination).transfer(ethBalance);
 }
 function tradeStatus(bool status) public onlyOwner{
     tradeEnabled = status;
 }
 function swapAndLiquify(uint256 liqTokensPassed) private {
     uint256 half = liqTokensPassed / 2;
     uint256 otherHalf = liqTokensPassed - half;
     uint256 initialBalance = address(this).balance;
     swapTokensForETH(half);
     uint256 newBalance = address(this).balance - (initialBalance);
     addLiquidity(otherHalf, newBalance);
     emit SwapAndLiquify(half,newBalance,otherHalf);
 }
 function swapTokensForETH(uint256 tokenAmount) private{
     address[] memory path = new address[](2);
     path[0] = address(this);
     path[1] = _router.WETH();
     _approve(address(this), address(_router), tokenAmount);
  
     _router.swapExactTokensForETHSupportingFeeOnTransferTokens(
         tokenAmount,
         0, // Accept any amount of ETH.
         path,
         address(this),
         block.timestamp
     );
 }
  function addLiquidity(uint256 tokenAmount,uint256 ethAmount) private{
     _approve(address(this), address(_router), tokenAmount);
     _router.addLiquidityETH{value:ethAmount}(
         address(this),
         tokenAmount,
         0,
         0,
         deadAddress,// tr
         block.timestamp
     );
 }
 function _approve(address owner,address spender, uint256 amount) internal{
     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);
 }
 //Fees related functions
 function addToExcluded(address toExclude) public onlyOwner{
     _excludedFromFees[toExclude] = true;
 }
 function removeFromExcluded(address toRemove) public onlyOwner{
     _excludedFromFees[toRemove] = false;
 }
   function excludePresaleAddresses(address router, address presale) external onlyOwner {
  
     _liquidityHolders[address(router)] = true;
     _liquidityHolders[presale] = true;
     presaleAddresses[address(router)] = true;
     presaleAddresses[presale] = true;
 
 }
 function endPresaleStatus() public onlyOwner{
     buymktFee = 4;
     buyliqFee = 2;
     sellmktFee = 4;
     sellliqFee = 2;
     setSwapAndLiquify(true);
 }
 function updateThreshold(uint newThreshold) public onlyOwner{
     currentThreshold = newThreshold;
 }
 function setSwapAndLiquify(bool _enabled) public onlyOwner{
         swapAndLiquifyEnabled = _enabled;
 }
 //Marketing related
 function setMktAddress(address newAddress) external onlyOwner{
     marketingAddress = payable(newAddress);
 }
 function transferAssetsETH(address payable to, uint256 amount) internal{
         to.transfer(amount);
 }
 function setAutomatedMarketMakerPair(address pair, bool value) public onlyOwner {
     require(pair != uniswapV2Pair, "The pair cannot be removed from automatedMarketMakerPairs");
     _setAutomatedMarketMakerPair(pair, value);
 }
 function _setAutomatedMarketMakerPair(address pair, bool value) private {
     automatedMarketMakerPairs[pair] = value;
     emit SetAutomatedMarketMakerPair(pair, value);
 }
 function updatecurrentbuyliqFee(uint256 newAmount) public onlyOwner{
         buyliqFee = newAmount;
 }
 function updatecurrentbuymktfee(uint256 newAmount) public onlyOwner{
          buymktFee= newAmount;
 }
   function updatecurrentsellLiqFee(uint256 newAmount) public onlyOwner{
          sellliqFee= newAmount;
 }
 function updatecurrentsellmktfee(uint256 newAmount)public onlyOwner{
          sellmktFee= newAmount;
 }
 function currentMaxWallet() public view returns(uint256){
     return maxWalletAmount;
 }
 function currentMaxTx() public view returns(uint256){
     return maxTxAmount;
 }
 function updateSwapTreshold(uint256 newVal) public onlyOwner{
     swapTreshold = newVal;
     requiredTokensToSwap = _totalSupply*swapTreshold/1000;
  
 }
 function currentTradeStatus() public view returns (bool){
     return tradeEnabled;
 }
 function currentSwapTreshold() public view returns(uint256){
     return swapTreshold;
 }
 function currentTokensToSwap() public view returns(uint256){
     return requiredTokensToSwap;
 }
}
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;
}