{{ "language": "Solidity", "sources": { "/contracts/AstroCash.sol": { "content": "// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.12;\n\n\nimport \"./interface/IUniswapV2Router.sol\";\nimport \"./interface/IUniswapFactory.sol\";\nimport \"@openzeppelin/contracts/interfaces/IERC20.sol\";\nimport \"@openzeppelin/contracts/token/ERC20/extensions/ERC20Burnable.sol\";\nimport \"@openzeppelin/contracts/access/Ownable.sol\";\nimport \"@openzeppelin/contracts/utils/math/SafeMath.sol\";\n\ncontract AstroCash is Ownable, ERC20Burnable {\n using SafeMath for uint256;\n\n IUniswapV2Router public uniswapV2Router;\n address public uniswapV2Pair;\n\n bool private swapping;\n bool public swapAndLiquifyEnabled = true;\n\n address payable public marketingWalletAddress = payable(address(0));\n address payable public developmentWalletAddress = payable(address(0));\n address payable public projectWalletAddress = payable(address(0));\n\n uint256 public swapTokensAtAmount = 10000 * (10**decimals());\n uint256 public maxTxAmount = 1000000 * (10**decimals());\n uint256 public maxBuyAmount = 1000000 * (10**decimals());\n uint256 public maxSaleAmount = 1000000 * (10**decimals());\n\n uint256[] public liquidityFee;\n uint256[] public projectFee;\n uint256[] public marketingFee;\n uint256[] public developmentFee;\n uint256[] public burnFee;\n\n uint256 private tokenToSwap;\n uint256 private tokenToMarketing;\n uint256 private tokenToDevelopment;\n uint256 private tokenToProject;\n uint256 private tokenToLiquidity;\n\n uint256 public liquidityFeeTotal;\n uint256 public projectFeeTotal;\n uint256 public marketingFeeTotal;\n uint256 public developmentFeeTotal;\n\n uint256 public immutable maxIndividualFee; // Ensures security for investors so that a 99% rate is not possible\n uint256 public immutable minIndividualLimitTx; // Ensures security for investors so that a 0 linit tx is not possible\n\n address private _lpDestination;\n\n mapping(address => bool) private _isExcludedFromFees;\n mapping(address => bool) public isExcludedFromAmountLimitToken;\n mapping(address => bool) public automatedMarketMakerPairs;\n\n event UpdateUniswapV2Router(\n address indexed newAddress,\n address indexed oldAddress\n );\n event ExcludeFromFees(address indexed account, bool isExcluded);\n event ExcludeMultipleAccountsFromFees(address[] accounts, bool isExcluded);\n event SetAutomatedMarketMakerPair(address indexed pair, bool indexed value);\n\n constructor(\n string memory token_name,\n string memory short_symbol,\n uint256 token_totalSupply,\n uint256 max_individual_fee,\n uint256 min_individual_limit_tx\n ) ERC20(token_name, short_symbol) {\n _mint(msg.sender, token_totalSupply * 10**decimals());\n\n _lpDestination = owner();\n\n excludeFromFees(owner(), true);\n excludeFromFees(address(this), true);\n\n marketingWalletAddress = payable(owner());\n developmentWalletAddress = payable(owner());\n projectWalletAddress = payable(owner());\n\n // Set default fees\n liquidityFee.push(300);\n liquidityFee.push(300);\n liquidityFee.push(300);\n\n projectFee.push(300);\n projectFee.push(300);\n projectFee.push(300);\n\n marketingFee.push(300);\n marketingFee.push(300);\n marketingFee.push(300);\n\n developmentFee.push(300);\n developmentFee.push(300);\n developmentFee.push(300);\n\n burnFee.push(0);\n burnFee.push(0);\n burnFee.push(0);\n\n // One time change / immutable var / investor protection\n maxIndividualFee = max_individual_fee;\n minIndividualLimitTx = min_individual_limit_tx;\n }\n\n receive() external payable {}\n\n /**\n * Set the initial router used to generate liquidity\n **/\n function updateUniswapV2Router(address newAddress) public onlyOwner {\n require(\n newAddress != address(uniswapV2Router),\n \"The router already has that address\"\n );\n emit UpdateUniswapV2Router(newAddress, address(uniswapV2Router));\n uniswapV2Router = IUniswapV2Router(newAddress);\n\n uniswapV2Pair = IUniswapFactory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n _setAutomatedMarketMakerPair(uniswapV2Pair, true);\n\n _approve(address(this), address(uniswapV2Router), totalSupply());\n }\n\n /**\n * Update destination for new lp, avoid safemoon security\n **/\n function setLpDestination(address newLpOwner) external onlyOwner {\n _lpDestination = newLpOwner;\n }\n\n /**\n * Exclude address from fees\n **/\n function excludeFromFees(address account, bool excluded) public onlyOwner {\n require(\n _isExcludedFromFees[account] != excluded,\n \"Account is already the value of 'excluded'\"\n );\n _isExcludedFromFees[account] = excluded;\n emit ExcludeFromFees(account, excluded);\n }\n\n /**\n * Exclude address from tx limits\n **/\n function excludeFromLimitAmount(address account, bool excluded)\n public\n onlyOwner\n {\n require(\n isExcludedFromAmountLimitToken[account] != excluded,\n \"Account is already the value of 'excluded'\"\n );\n isExcludedFromAmountLimitToken[account] = excluded;\n }\n\n /**\n * Exclude multiple accounts from fees\n **/\n function excludeMultipleAccountsFromFees(\n address[] calldata accounts,\n bool excluded\n ) public onlyOwner {\n for (uint256 i = 0; i < accounts.length; i++) {\n _isExcludedFromFees[accounts[i]] = excluded;\n }\n emit ExcludeMultipleAccountsFromFees(accounts, excluded);\n }\n\n /**\n * Set marketing wallet\n **/\n function setMarketingWallet(address payable wallet) external onlyOwner {\n require(wallet != address(0), \"zero-address not allowed\");\n marketingWalletAddress = wallet;\n }\n\n /**\n * Set devs wallet\n **/\n function setDevelopmentWallet(address payable wallet) external onlyOwner {\n require(wallet != address(0), \"zero-address not allowed\");\n developmentWalletAddress = wallet;\n }\n\n /**\n * Set project wallet\n **/\n function setProjectWallet(address payable wallet) external onlyOwner {\n require(wallet != address(0), \"zero-address not allowed\");\n projectWalletAddress = wallet;\n }\n\n /**\n * Set burn fee: Base 10000, ex.: 1.5% = 150\n **/\n function setBurnFee(\n uint256 buy,\n uint256 sell,\n uint256 p2p\n ) external onlyOwner {\n require(\n buy <= maxIndividualFee &&\n sell <= maxIndividualFee &&\n p2p <= maxIndividualFee,\n \"You must respect the maximum allowed fee\"\n );\n burnFee[0] = buy;\n burnFee[1] = sell;\n burnFee[2] = p2p;\n }\n\n /**\n * Set liquidity fee: Base 10000, ex.: 1.5% = 150\n **/\n function setLiquidityFee(\n uint256 buy,\n uint256 sell,\n uint256 p2p\n ) external onlyOwner {\n require(\n buy <= maxIndividualFee &&\n sell <= maxIndividualFee &&\n p2p <= maxIndividualFee,\n \"You must respect the maximum allowed fee\"\n );\n liquidityFee[0] = buy;\n liquidityFee[1] = sell;\n liquidityFee[2] = p2p;\n }\n\n /**\n * Set Project fee: Base 10000, ex.: 1.5% = 150\n **/\n function setProjectFee(\n uint256 buy,\n uint256 sell,\n uint256 p2p\n ) external onlyOwner {\n require(\n buy <= maxIndividualFee &&\n sell <= maxIndividualFee &&\n p2p <= maxIndividualFee,\n \"You must respect the maximum allowed fee\"\n );\n projectFee[0] = buy;\n projectFee[1] = sell;\n projectFee[2] = p2p;\n }\n\n /**\n * Set Marketing fee: Base 10000, ex.: 1.5% = 150\n **/\n function setMarketingFee(\n uint256 buy,\n uint256 sell,\n uint256 p2p\n ) external onlyOwner {\n require(\n buy <= maxIndividualFee &&\n sell <= maxIndividualFee &&\n p2p <= maxIndividualFee,\n \"You must respect the maximum allowed fee\"\n );\n marketingFee[0] = buy;\n marketingFee[1] = sell;\n marketingFee[2] = p2p;\n }\n\n /**\n * Set Dev fee: Base 10000, ex.: 1.5% = 150\n **/\n function setDevelopmentFee(\n uint256 buy,\n uint256 sell,\n uint256 p2p\n ) external onlyOwner {\n require(\n buy <= maxIndividualFee &&\n sell <= maxIndividualFee &&\n p2p <= maxIndividualFee,\n \"You must respect the maximum allowed fee\"\n );\n developmentFee[0] = buy;\n developmentFee[1] = sell;\n developmentFee[2] = p2p;\n }\n\n /**\n * Set new liquidity pair\n **/\n function setAutomatedMarketMakerPair(address pair, bool value)\n public\n onlyOwner\n {\n require(\n pair != uniswapV2Pair,\n \"The PanCakeSwap pair cannot be removed from automatedMarketMakerPairs\"\n );\n _setAutomatedMarketMakerPair(pair, value);\n }\n\n /**\n * Internal function to set liquidity pair\n **/\n function _setAutomatedMarketMakerPair(address pair, bool value) private {\n require(\n automatedMarketMakerPairs[pair] != value,\n \"Automated market maker pair is already set to that value\"\n );\n automatedMarketMakerPairs[pair] = value;\n emit SetAutomatedMarketMakerPair(pair, value);\n }\n\n /**\n * Check address for exclude rule\n **/\n function isExcludedFromFees(address account) public view returns (bool) {\n return _isExcludedFromFees[account];\n }\n\n /**\n * Controls whether charges will be transformed into liquidity or disabled\n **/\n function setSwapAndLiquifyEnabled(bool enabled) public onlyOwner {\n swapAndLiquifyEnabled = enabled;\n }\n\n /**\n * Set max tx amount\n **/\n function setMaxTxAmount(uint256 amount) external onlyOwner {\n require(\n amount <= totalSupply() &&\n amount >= totalSupply().mul(minIndividualLimitTx).div(10000),\n \"Limit needs to be between the individual minimum and the total supply\"\n );\n\n maxTxAmount = amount;\n }\n\n /**\n * Set max tx sale amount\n **/\n function setSaleTxAmount(uint256 amount) external onlyOwner {\n require(\n amount <= totalSupply() &&\n amount >= totalSupply().mul(minIndividualLimitTx).div(10000),\n \"Limit needs to be between the individual minimum and the total supply\"\n );\n maxSaleAmount = amount;\n }\n\n /**\n * Set max tx buy amount\n **/\n function setBuyTxAmount(uint256 amount) external onlyOwner {\n require(\n amount <= totalSupply() &&\n amount >= totalSupply().mul(minIndividualLimitTx).div(10000),\n \"Limit needs to be between the individual minimum and the total supply\"\n );\n maxBuyAmount = amount;\n }\n\n /**\n * Determines how many tokens must be accumulated as a minimum before swapping into liquidity\n **/\n function setSwapTokensAmount(uint256 amount) public onlyOwner {\n require(\n amount <= totalSupply(),\n \"Amount cannot be over the total supply.\"\n );\n swapTokensAtAmount = amount;\n }\n\n /**\n * BEP20 main transfer method, all fee logic, and limits are contained here\n **/\n function _transfer(\n address from,\n address to,\n uint256 amount\n ) internal override {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n require(to != address(0), \"ERC20: transfer to the zero address\");\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n // Total transfer allowance per transaction\n if (\n from != owner() &&\n to != owner() &&\n !isExcludedFromAmountLimitToken[from] &&\n !isExcludedFromAmountLimitToken[to]\n ) {\n require(\n amount <= maxTxAmount,\n \"Transfer amount exceeds the maxTxAmount.\"\n );\n }\n\n // Total sales limit per tx\n if (\n !automatedMarketMakerPairs[from] &&\n automatedMarketMakerPairs[to] &&\n from != owner() &&\n to != owner() &&\n !isExcludedFromAmountLimitToken[from] &&\n !isExcludedFromAmountLimitToken[to]\n ) {\n require(\n amount <= maxSaleAmount,\n \"Transfer amount exceeds the maxSaleAmount\"\n );\n }\n\n // Total buy limit per tx\n if (\n automatedMarketMakerPairs[from] &&\n to != owner() &&\n !isExcludedFromAmountLimitToken[from] &&\n !isExcludedFromAmountLimitToken[to]\n ) {\n require(\n amount <= maxBuyAmount,\n \"Transfer amount exceeds the maxBuyAmount\"\n );\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n if (contractTokenBalance >= maxTxAmount) {\n contractTokenBalance = maxTxAmount;\n }\n\n bool canSwap = contractTokenBalance >= swapTokensAtAmount;\n\n if (\n canSwap &&\n !swapping &&\n automatedMarketMakerPairs[to] &&\n swapAndLiquifyEnabled\n ) {\n swapping = true;\n tokenToMarketing = marketingFeeTotal;\n tokenToDevelopment = developmentFeeTotal;\n tokenToProject = projectFeeTotal;\n tokenToLiquidity = liquidityFeeTotal;\n\n // When we send liquidity we sell half of the tokens and the other half is used for addition in the liquidity pair.\n uint256 halfTokenToLiquidity = liquidityFeeTotal > 0\n ? liquidityFeeTotal.div(2)\n : 0;\n\n // Stores the total tokens that will be sold, to generate the share of each fee later.\n tokenToSwap = tokenToMarketing\n .add(tokenToDevelopment)\n .add(tokenToProject)\n .add(halfTokenToLiquidity);\n\n uint256 tokenToSwapPlusLiq = tokenToSwap.add(halfTokenToLiquidity);\n // We sell in smaller tranches determined by the variable swapTokensAtAmount, we need to know what % liquidity of this total is to be sold.\n uint256 rateLiqFee = halfTokenToLiquidity.mul(10000).div(\n tokenToSwapPlusLiq\n );\n uint256 initialBalance = address(this).balance;\n uint256 swapTokensAtAmountSubLiq = swapTokensAtAmount.sub( // Found liquidity share from swapTokensAtAmount\n swapTokensAtAmount.mul(rateLiqFee).div(10000)\n );\n // Exchange tokens for BNB\n swapTokensForBNB(swapTokensAtAmountSubLiq);\n uint256 newBalance = address(this).balance.sub(initialBalance);\n\n // Determines the corresponding total of each fee in the new balance accrued in BNB\n uint256 marketingPart = newBalance.mul(tokenToMarketing).div(\n tokenToSwap\n );\n uint256 developmentPart = newBalance.mul(tokenToDevelopment).div(\n tokenToSwap\n );\n uint256 projectPart = newBalance.mul(tokenToProject).div(\n tokenToSwap\n );\n\n // What remains will be used for liquidity\n uint256 liquidityPart = newBalance\n .sub(marketingPart)\n .sub(developmentPart)\n .sub(projectPart);\n\n // Adjusts the total used of each token per fee in this liquidity transaction\n if (marketingPart > 0) {\n payable(marketingWalletAddress).transfer(marketingPart);\n marketingFeeTotal = marketingFeeTotal.sub(\n swapTokensAtAmount.mul(tokenToMarketing).div(\n tokenToSwapPlusLiq\n )\n );\n }\n\n if (developmentPart > 0) {\n payable(developmentWalletAddress).transfer(developmentPart);\n developmentFeeTotal = developmentFeeTotal.sub(\n swapTokensAtAmount.mul(tokenToDevelopment).div(\n tokenToSwapPlusLiq\n )\n );\n }\n\n if (projectPart > 0) {\n payable(projectWalletAddress).transfer(projectPart);\n projectFeeTotal = projectFeeTotal.sub(\n swapTokensAtAmount.mul(tokenToProject).div(\n tokenToSwapPlusLiq\n )\n );\n }\n\n // Add liquidity to pancakeswap\n if (liquidityPart > 0) {\n addLiquidity(\n halfTokenToLiquidity,\n liquidityPart,\n _lpDestination\n );\n\n liquidityFeeTotal = liquidityFeeTotal.sub(\n swapTokensAtAmount.mul(tokenToLiquidity).div(\n tokenToSwapPlusLiq\n )\n );\n }\n swapping = false;\n }\n\n bool takeFee = !swapping;\n\n if (_isExcludedFromFees[from] || _isExcludedFromFees[to]) {\n takeFee = false;\n }\n\n // Collects the tokens/fees that will be transformed into liquidity at the correct time.\n if (takeFee) {\n (\n uint256 transferToContractFee,\n uint256 burnFeeTx,\n uint256 transferedToWalletFee\n ) = collectFee(\n from,\n amount,\n automatedMarketMakerPairs[to],\n !automatedMarketMakerPairs[from] &&\n !automatedMarketMakerPairs[to]\n );\n\n if (transferToContractFee > 0)\n super._transfer(from, address(this), transferToContractFee);\n if (burnFeeTx > 0) _burn(from, burnFeeTx);\n\n amount = amount.sub(transferToContractFee).sub(burnFeeTx).sub(\n transferedToWalletFee\n );\n }\n\n super._transfer(from, to, amount);\n }\n\n /**\n * Calculates the fee amounts that will be held in the contract for later generation of liquidity and distribution\n **/\n function collectFee(\n address from,\n uint256 amount,\n bool sell,\n bool p2p\n )\n private\n returns (\n uint256 transferToContractFee,\n uint256 burnFeeTx,\n uint256 transferedToWalletFee\n )\n {\n uint256 liquifyFeeNew = amount\n .mul(\n p2p ? liquidityFee[2] : sell ? liquidityFee[1] : liquidityFee[0]\n )\n .div(10000);\n\n liquidityFeeTotal = liquidityFeeTotal.add(liquifyFeeNew);\n\n uint256 projectFeeNew = amount\n .mul(p2p ? projectFee[2] : sell ? projectFee[1] : projectFee[0])\n .div(10000);\n\n if (swapAndLiquifyEnabled)\n projectFeeTotal = projectFeeTotal.add(projectFeeNew);\n else if (projectFeeNew > 0)\n super._transfer(from, projectWalletAddress, projectFeeNew);\n\n uint256 marketingFeeNew = amount\n .mul(\n p2p ? marketingFee[2] : sell ? marketingFee[1] : marketingFee[0]\n )\n .div(10000);\n\n if (swapAndLiquifyEnabled)\n marketingFeeTotal = marketingFeeTotal.add(marketingFeeNew);\n else if (marketingFeeNew > 0)\n super._transfer(from, marketingWalletAddress, marketingFeeNew);\n\n uint256 developmentFeeNew = amount\n .mul(\n p2p ? developmentFee[2] : sell\n ? developmentFee[1]\n : developmentFee[0]\n )\n .div(10000);\n\n if (swapAndLiquifyEnabled)\n developmentFeeTotal = developmentFeeTotal.add(developmentFeeNew);\n else if (developmentFeeNew > 0)\n super._transfer(from, developmentWalletAddress, developmentFeeNew);\n\n burnFeeTx = amount\n .mul(p2p ? burnFee[2] : sell ? burnFee[1] : burnFee[0])\n .div(10000);\n\n transferToContractFee = swapAndLiquifyEnabled\n ? liquifyFeeNew.add(projectFeeNew).add(marketingFeeNew).add(\n developmentFeeNew\n )\n : liquifyFeeNew;\n\n transferedToWalletFee = !swapAndLiquifyEnabled\n ? projectFeeNew.add(marketingFeeNew).add(developmentFeeNew)\n : 0;\n }\n\n /**\n * Swaps contract tokens into BNB\n **/\n function swapTokensForBNB(uint256 tokenAmount) private {\n address[] memory path = new address[](2);\n path[0] = address(this);\n path[1] = uniswapV2Router.WETH();\n\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n /**\n * Adds liquidity to DEX\n **/\n function addLiquidity(\n uint256 tokenAmount,\n uint256 ethAmount,\n address account\n ) internal {\n // add the liquidity\n uniswapV2Router.addLiquidityETH{value: ethAmount}(\n address(this),\n tokenAmount,\n 0, // slippage\n 0, // slippage\n account,\n block.timestamp\n );\n }\n\n /**\n * Send any remaining BNB that is in the contract.\n **/\n function sendDustBNB(address payable _recipient) public onlyOwner {\n _recipient.transfer(address(this).balance);\n }\n}\n" }, "/contracts/interface/IUniswapV2Router.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity >=0.8.10;\n\ninterface IUniswapV2Router {\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidity(\n address tokenA,\n address tokenB,\n uint256 amountADesired,\n uint256 amountBDesired,\n uint256 amountAMin,\n uint256 amountBMin,\n address to,\n uint256 deadline\n )\n external\n returns (\n uint256 amountA,\n uint256 amountB,\n uint256 liquidity\n );\n\n function addLiquidityETH(\n address token,\n uint256 amountTokenDesired,\n uint256 amountTokenMin,\n uint256 amountETHMin,\n address to,\n uint256 deadline\n )\n external\n payable\n returns (\n uint256 amountToken,\n uint256 amountETH,\n uint256 liquidity\n );\n\n function removeLiquidity(\n address tokenA,\n address tokenB,\n uint256 liquidity,\n uint256 amountAMin,\n uint256 amountBMin,\n address to,\n uint256 deadline\n ) external returns (uint256 amountA, uint256 amountB);\n\n function removeLiquidityETH(\n address token,\n uint256 liquidity,\n uint256 amountTokenMin,\n uint256 amountETHMin,\n address to,\n uint256 deadline\n ) external returns (uint256 amountToken, uint256 amountETH);\n\n function getAmountsOut(uint256 amountIn, address[] memory path)\n external\n view\n returns (uint256[] memory amounts);\n\n function getAmountsIn(uint256 amountOut, address[] memory path)\n external\n view\n returns (uint256[] memory amounts);\n\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint256 amountIn,\n uint256 amountOutMin,\n address[] calldata path,\n address to,\n uint256 deadline\n ) external;\n}\n\n//\n" }, "/contracts/interface/IUniswapFactory.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity >=0.8.10;\n\ninterface IUniswapFactory {\n event PairCreated(\n address indexed token0,\n address indexed token1,\n address pair,\n uint256\n );\n\n function feeTo() external view returns (address);\n\n function feeToSetter() external view returns (address);\n\n function getPair(address tokenA, address tokenB)\n external\n view\n returns (address pair);\n\n function allPairs(uint256) external view returns (address pair);\n\n function allPairsLength() external view returns (uint256);\n\n function createPair(address tokenA, address tokenB)\n external\n returns (address pair);\n\n function setFeeTo(address) external;\n\n function setFeeToSetter(address) external;\n}\n" }, "@openzeppelin/contracts/utils/math/SafeMath.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.6.0) (utils/math/SafeMath.sol)\n\npragma solidity ^0.8.0;\n\n// CAUTION\n// This version of SafeMath should only be used with Solidity 0.8 or later,\n// because it relies on the compiler's built in overflow checks.\n\n/**\n * @dev Wrappers over Solidity's arithmetic operations.\n *\n * NOTE: `SafeMath` is generally not needed starting with Solidity 0.8, since the compiler\n * now has built in overflow checking.\n */\nlibrary SafeMath {\n /**\n * @dev Returns the addition of two unsigned integers, with an overflow flag.\n *\n * _Available since v3.4._\n */\n function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {\n unchecked {\n uint256 c = a + b;\n if (c < a) return (false, 0);\n return (true, c);\n }\n }\n\n /**\n * @dev Returns the subtraction of two unsigned integers, with an overflow flag.\n *\n * _Available since v3.4._\n */\n function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {\n unchecked {\n if (b > a) return (false, 0);\n return (true, a - b);\n }\n }\n\n /**\n * @dev Returns the multiplication of two unsigned integers, with an overflow flag.\n *\n * _Available since v3.4._\n */\n function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {\n unchecked {\n // Gas optimization: this is cheaper than requiring 'a' not being zero, but the\n // benefit is lost if 'b' is also tested.\n // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522\n if (a == 0) return (true, 0);\n uint256 c = a * b;\n if (c / a != b) return (false, 0);\n return (true, c);\n }\n }\n\n /**\n * @dev Returns the division of two unsigned integers, with a division by zero flag.\n *\n * _Available since v3.4._\n */\n function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {\n unchecked {\n if (b == 0) return (false, 0);\n return (true, a / b);\n }\n }\n\n /**\n * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.\n *\n * _Available since v3.4._\n */\n function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {\n unchecked {\n if (b == 0) return (false, 0);\n return (true, a % b);\n }\n }\n\n /**\n * @dev Returns the addition of two unsigned integers, reverting on\n * overflow.\n *\n * Counterpart to Solidity's `+` operator.\n *\n * Requirements:\n *\n * - Addition cannot overflow.\n */\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n return a + b;\n }\n\n /**\n * @dev Returns the subtraction of two unsigned integers, reverting on\n * overflow (when the result is negative).\n *\n * Counterpart to Solidity's `-` operator.\n *\n * Requirements:\n *\n * - Subtraction cannot overflow.\n */\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return a - b;\n }\n\n /**\n * @dev Returns the multiplication of two unsigned integers, reverting on\n * overflow.\n *\n * Counterpart to Solidity's `*` operator.\n *\n * Requirements:\n *\n * - Multiplication cannot overflow.\n */\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n return a * b;\n }\n\n /**\n * @dev Returns the integer division of two unsigned integers, reverting on\n * division by zero. The result is rounded towards zero.\n *\n * Counterpart to Solidity's `/` operator.\n *\n * Requirements:\n *\n * - The divisor cannot be zero.\n */\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return a / b;\n }\n\n /**\n * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\n * reverting when dividing by zero.\n *\n * Counterpart to Solidity's `%` operator. This function uses a `revert`\n * opcode (which leaves remaining gas untouched) while Solidity uses an\n * invalid opcode to revert (consuming all remaining gas).\n *\n * Requirements:\n *\n * - The divisor cannot be zero.\n */\n function mod(uint256 a, uint256 b) internal pure returns (uint256) {\n return a % b;\n }\n\n /**\n * @dev Returns the subtraction of two unsigned integers, reverting with custom message on\n * overflow (when the result is negative).\n *\n * CAUTION: This function is deprecated because it requires allocating memory for the error\n * message unnecessarily. For custom revert reasons use {trySub}.\n *\n * Counterpart to Solidity's `-` operator.\n *\n * Requirements:\n *\n * - Subtraction cannot overflow.\n */\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n unchecked {\n require(b <= a, errorMessage);\n return a - b;\n }\n }\n\n /**\n * @dev Returns the integer division of two unsigned integers, reverting with custom message on\n * division by zero. The result is rounded towards zero.\n *\n * Counterpart to Solidity's `/` operator. Note: this function uses a\n * `revert` opcode (which leaves remaining gas untouched) while Solidity\n * uses an invalid opcode to revert (consuming all remaining gas).\n *\n * Requirements:\n *\n * - The divisor cannot be zero.\n */\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n unchecked {\n require(b > 0, errorMessage);\n return a / b;\n }\n }\n\n /**\n * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\n * reverting with custom message when dividing by zero.\n *\n * CAUTION: This function is deprecated because it requires allocating memory for the error\n * message unnecessarily. For custom revert reasons use {tryMod}.\n *\n * Counterpart to Solidity's `%` operator. This function uses a `revert`\n * opcode (which leaves remaining gas untouched) while Solidity uses an\n * invalid opcode to revert (consuming all remaining gas).\n *\n * Requirements:\n *\n * - The divisor cannot be zero.\n */\n function mod(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n unchecked {\n require(b > 0, errorMessage);\n return a % b;\n }\n }\n}\n" }, "@openzeppelin/contracts/utils/Context.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Provides information about the current execution context, including the\n * sender of the transaction and its data. While these are generally available\n * via msg.sender and msg.data, they should not be accessed in such a direct\n * manner, since when dealing with meta-transactions the account sending and\n * paying for execution may not be the actual sender (as far as an application\n * is concerned).\n *\n * This contract is only required for intermediate, library-like contracts.\n */\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n}\n" }, "@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../IERC20.sol\";\n\n/**\n * @dev Interface for the optional metadata functions from the ERC20 standard.\n *\n * _Available since v4.1._\n */\ninterface IERC20Metadata is IERC20 {\n /**\n * @dev Returns the name of the token.\n */\n function name() external view returns (string memory);\n\n /**\n * @dev Returns the symbol of the token.\n */\n function symbol() external view returns (string memory);\n\n /**\n * @dev Returns the decimals places of the token.\n */\n function decimals() external view returns (uint8);\n}\n" }, "@openzeppelin/contracts/token/ERC20/extensions/ERC20Burnable.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC20/extensions/ERC20Burnable.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../ERC20.sol\";\nimport \"../../../utils/Context.sol\";\n\n/**\n * @dev Extension of {ERC20} that allows token holders to destroy both their own\n * tokens and those that they have an allowance for, in a way that can be\n * recognized off-chain (via event analysis).\n */\nabstract contract ERC20Burnable is Context, ERC20 {\n /**\n * @dev Destroys `amount` tokens from the caller.\n *\n * See {ERC20-_burn}.\n */\n function burn(uint256 amount) public virtual {\n _burn(_msgSender(), amount);\n }\n\n /**\n * @dev Destroys `amount` tokens from `account`, deducting from the caller's\n * allowance.\n *\n * See {ERC20-_burn} and {ERC20-allowance}.\n *\n * Requirements:\n *\n * - the caller must have allowance for ``accounts``'s tokens of at least\n * `amount`.\n */\n function burnFrom(address account, uint256 amount) public virtual {\n _spendAllowance(account, _msgSender(), amount);\n _burn(account, amount);\n }\n}\n" }, "@openzeppelin/contracts/token/ERC20/IERC20.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC20 standard as defined in the EIP.\n */\ninterface IERC20 {\n /**\n * @dev Emitted when `value` tokens are moved from one account (`from`) to\n * another (`to`).\n *\n * Note that `value` may be zero.\n */\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n /**\n * @dev Emitted when the allowance of a `spender` for an `owner` is set by\n * a call to {approve}. `value` is the new allowance.\n */\n event Approval(address indexed owner, address indexed spender, uint256 value);\n\n /**\n * @dev Returns the amount of tokens in existence.\n */\n function totalSupply() external view returns (uint256);\n\n /**\n * @dev Returns the amount of tokens owned by `account`.\n */\n function balanceOf(address account) external view returns (uint256);\n\n /**\n * @dev Moves `amount` tokens from the caller's account to `to`.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * Emits a {Transfer} event.\n */\n function transfer(address to, uint256 amount) external returns (bool);\n\n /**\n * @dev Returns the remaining number of tokens that `spender` will be\n * allowed to spend on behalf of `owner` through {transferFrom}. This is\n * zero by default.\n *\n * This value changes when {approve} or {transferFrom} are called.\n */\n function allowance(address owner, address spender) external view returns (uint256);\n\n /**\n * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * IMPORTANT: Beware that changing an allowance with this method brings the risk\n * that someone may use both the old and the new allowance by unfortunate\n * transaction ordering. One possible solution to mitigate this race\n * condition is to first reduce the spender's allowance to 0 and set the\n * desired value afterwards:\n * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n *\n * Emits an {Approval} event.\n */\n function approve(address spender, uint256 amount) external returns (bool);\n\n /**\n * @dev Moves `amount` tokens from `from` to `to` using the\n * allowance mechanism. `amount` is then deducted from the caller's\n * allowance.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * Emits a {Transfer} event.\n */\n function transferFrom(\n address from,\n address to,\n uint256 amount\n ) external returns (bool);\n}\n" }, "@openzeppelin/contracts/token/ERC20/ERC20.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/ERC20.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./IERC20.sol\";\nimport \"./extensions/IERC20Metadata.sol\";\nimport \"../../utils/Context.sol\";\n\n/**\n * @dev Implementation of the {IERC20} interface.\n *\n * This implementation is agnostic to the way tokens are created. This means\n * that a supply mechanism has to be added in a derived contract using {_mint}.\n * For a generic mechanism see {ERC20PresetMinterPauser}.\n *\n * TIP: For a detailed writeup see our guide\n * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How\n * to implement supply mechanisms].\n *\n * We have followed general OpenZeppelin Contracts guidelines: functions revert\n * instead returning `false` on failure. This behavior is nonetheless\n * conventional and does not conflict with the expectations of ERC20\n * applications.\n *\n * Additionally, an {Approval} event is emitted on calls to {transferFrom}.\n * This allows applications to reconstruct the allowance for all accounts just\n * by listening to said events. Other implementations of the EIP may not emit\n * these events, as it isn't required by the specification.\n *\n * Finally, the non-standard {decreaseAllowance} and {increaseAllowance}\n * functions have been added to mitigate the well-known issues around setting\n * allowances. See {IERC20-approve}.\n */\ncontract ERC20 is Context, IERC20, IERC20Metadata {\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n uint256 private _totalSupply;\n\n string private _name;\n string private _symbol;\n\n /**\n * @dev Sets the values for {name} and {symbol}.\n *\n * The default value of {decimals} is 18. To select a different value for\n * {decimals} you should overload it.\n *\n * All two of these values are immutable: they can only be set once during\n * construction.\n */\n constructor(string memory name_, string memory symbol_) {\n _name = name_;\n _symbol = symbol_;\n }\n\n /**\n * @dev Returns the name of the token.\n */\n function name() public view virtual override returns (string memory) {\n return _name;\n }\n\n /**\n * @dev Returns the symbol of the token, usually a shorter version of the\n * name.\n */\n function symbol() public view virtual override returns (string memory) {\n return _symbol;\n }\n\n /**\n * @dev Returns the number of decimals used to get its user representation.\n * For example, if `decimals` equals `2`, a balance of `505` tokens should\n * be displayed to a user as `5.05` (`505 / 10 ** 2`).\n *\n * Tokens usually opt for a value of 18, imitating the relationship between\n * Ether and Wei. This is the value {ERC20} uses, unless this function is\n * overridden;\n *\n * NOTE: This information is only used for _display_ purposes: it in\n * no way affects any of the arithmetic of the contract, including\n * {IERC20-balanceOf} and {IERC20-transfer}.\n */\n function decimals() public view virtual override returns (uint8) {\n return 18;\n }\n\n /**\n * @dev See {IERC20-totalSupply}.\n */\n function totalSupply() public view virtual override returns (uint256) {\n return _totalSupply;\n }\n\n /**\n * @dev See {IERC20-balanceOf}.\n */\n function balanceOf(address account) public view virtual override returns (uint256) {\n return _balances[account];\n }\n\n /**\n * @dev See {IERC20-transfer}.\n *\n * Requirements:\n *\n * - `to` cannot be the zero address.\n * - the caller must have a balance of at least `amount`.\n */\n function transfer(address to, uint256 amount) public virtual override returns (bool) {\n address owner = _msgSender();\n _transfer(owner, to, amount);\n return true;\n }\n\n /**\n * @dev See {IERC20-allowance}.\n */\n function allowance(address owner, address spender) public view virtual override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n /**\n * @dev See {IERC20-approve}.\n *\n * NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on\n * `transferFrom`. This is semantically equivalent to an infinite approval.\n *\n * Requirements:\n *\n * - `spender` cannot be the zero address.\n */\n function approve(address spender, uint256 amount) public virtual override returns (bool) {\n address owner = _msgSender();\n _approve(owner, spender, amount);\n return true;\n }\n\n /**\n * @dev See {IERC20-transferFrom}.\n *\n * Emits an {Approval} event indicating the updated allowance. This is not\n * required by the EIP. See the note at the beginning of {ERC20}.\n *\n * NOTE: Does not update the allowance if the current allowance\n * is the maximum `uint256`.\n *\n * Requirements:\n *\n * - `from` and `to` cannot be the zero address.\n * - `from` must have a balance of at least `amount`.\n * - the caller must have allowance for ``from``'s tokens of at least\n * `amount`.\n */\n function transferFrom(\n address from,\n address to,\n uint256 amount\n ) public virtual override returns (bool) {\n address spender = _msgSender();\n _spendAllowance(from, spender, amount);\n _transfer(from, to, amount);\n return true;\n }\n\n /**\n * @dev Atomically increases the allowance granted to `spender` by the caller.\n *\n * This is an alternative to {approve} that can be used as a mitigation for\n * problems described in {IERC20-approve}.\n *\n * Emits an {Approval} event indicating the updated allowance.\n *\n * Requirements:\n *\n * - `spender` cannot be the zero address.\n */\n function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {\n address owner = _msgSender();\n _approve(owner, spender, allowance(owner, spender) + addedValue);\n return true;\n }\n\n /**\n * @dev Atomically decreases the allowance granted to `spender` by the caller.\n *\n * This is an alternative to {approve} that can be used as a mitigation for\n * problems described in {IERC20-approve}.\n *\n * Emits an {Approval} event indicating the updated allowance.\n *\n * Requirements:\n *\n * - `spender` cannot be the zero address.\n * - `spender` must have allowance for the caller of at least\n * `subtractedValue`.\n */\n function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {\n address owner = _msgSender();\n uint256 currentAllowance = allowance(owner, spender);\n require(currentAllowance >= subtractedValue, \"ERC20: decreased allowance below zero\");\n unchecked {\n _approve(owner, spender, currentAllowance - subtractedValue);\n }\n\n return true;\n }\n\n /**\n * @dev Moves `amount` of tokens from `sender` to `recipient`.\n *\n * This internal function is equivalent to {transfer}, and can be used to\n * e.g. implement automatic token fees, slashing mechanisms, etc.\n *\n * Emits a {Transfer} event.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `from` must have a balance of at least `amount`.\n */\n function _transfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n _beforeTokenTransfer(from, to, amount);\n\n uint256 fromBalance = _balances[from];\n require(fromBalance >= amount, \"ERC20: transfer amount exceeds balance\");\n unchecked {\n _balances[from] = fromBalance - amount;\n }\n _balances[to] += amount;\n\n emit Transfer(from, to, amount);\n\n _afterTokenTransfer(from, to, amount);\n }\n\n /** @dev Creates `amount` tokens and assigns them to `account`, increasing\n * the total supply.\n *\n * Emits a {Transfer} event with `from` set to the zero address.\n *\n * Requirements:\n *\n * - `account` cannot be the zero address.\n */\n function _mint(address account, uint256 amount) internal virtual {\n require(account != address(0), \"ERC20: mint to the zero address\");\n\n _beforeTokenTransfer(address(0), account, amount);\n\n _totalSupply += amount;\n _balances[account] += amount;\n emit Transfer(address(0), account, amount);\n\n _afterTokenTransfer(address(0), account, amount);\n }\n\n /**\n * @dev Destroys `amount` tokens from `account`, reducing the\n * total supply.\n *\n * Emits a {Transfer} event with `to` set to the zero address.\n *\n * Requirements:\n *\n * - `account` cannot be the zero address.\n * - `account` must have at least `amount` tokens.\n */\n function _burn(address account, uint256 amount) internal virtual {\n require(account != address(0), \"ERC20: burn from the zero address\");\n\n _beforeTokenTransfer(account, address(0), amount);\n\n uint256 accountBalance = _balances[account];\n require(accountBalance >= amount, \"ERC20: burn amount exceeds balance\");\n unchecked {\n _balances[account] = accountBalance - amount;\n }\n _totalSupply -= amount;\n\n emit Transfer(account, address(0), amount);\n\n _afterTokenTransfer(account, address(0), amount);\n }\n\n /**\n * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.\n *\n * This internal function is equivalent to `approve`, and can be used to\n * e.g. set automatic allowances for certain subsystems, etc.\n *\n * Emits an {Approval} event.\n *\n * Requirements:\n *\n * - `owner` cannot be the zero address.\n * - `spender` cannot be the zero address.\n */\n function _approve(\n address owner,\n address spender,\n uint256 amount\n ) internal virtual {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n _allowances[owner][spender] = amount;\n emit Approval(owner, spender, amount);\n }\n\n /**\n * @dev Updates `owner` s allowance for `spender` based on spent `amount`.\n *\n * Does not update the allowance amount in case of infinite allowance.\n * Revert if not enough allowance is available.\n *\n * Might emit an {Approval} event.\n */\n function _spendAllowance(\n address owner,\n address spender,\n uint256 amount\n ) internal virtual {\n uint256 currentAllowance = allowance(owner, spender);\n if (currentAllowance != type(uint256).max) {\n require(currentAllowance >= amount, \"ERC20: insufficient allowance\");\n unchecked {\n _approve(owner, spender, currentAllowance - amount);\n }\n }\n }\n\n /**\n * @dev Hook that is called before any transfer of tokens. This includes\n * minting and burning.\n *\n * Calling conditions:\n *\n * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens\n * will be transferred to `to`.\n * - when `from` is zero, `amount` tokens will be minted for `to`.\n * - when `to` is zero, `amount` of ``from``'s tokens will be burned.\n * - `from` and `to` are never both zero.\n *\n * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n */\n function _beforeTokenTransfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {}\n\n /**\n * @dev Hook that is called after any transfer of tokens. This includes\n * minting and burning.\n *\n * Calling conditions:\n *\n * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens\n * has been transferred to `to`.\n * - when `from` is zero, `amount` tokens have been minted for `to`.\n * - when `to` is zero, `amount` of ``from``'s tokens have been burned.\n * - `from` and `to` are never both zero.\n *\n * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n */\n function _afterTokenTransfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {}\n}\n" }, "@openzeppelin/contracts/interfaces/IERC20.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (interfaces/IERC20.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../token/ERC20/IERC20.sol\";\n" }, "@openzeppelin/contracts/access/Ownable.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (access/Ownable.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../utils/Context.sol\";\n\n/**\n * @dev Contract module which provides a basic access control mechanism, where\n * there is an account (an owner) that can be granted exclusive access to\n * specific functions.\n *\n * By default, the owner account will be the one that deploys the contract. This\n * can later be changed with {transferOwnership}.\n *\n * This module is used through inheritance. It will make available the modifier\n * `onlyOwner`, which can be applied to your functions to restrict their use to\n * the owner.\n */\nabstract contract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);\n\n /**\n * @dev Initializes the contract setting the deployer as the initial owner.\n */\n constructor() {\n _transferOwnership(_msgSender());\n }\n\n /**\n * @dev Returns the address of the current owner.\n */\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n /**\n * @dev Throws if called by any account other than the owner.\n */\n modifier onlyOwner() {\n require(owner() == _msgSender(), \"Ownable: caller is not the owner\");\n _;\n }\n\n /**\n * @dev Leaves the contract without owner. It will not be possible to call\n * `onlyOwner` functions anymore. Can only be called by the current owner.\n *\n * NOTE: Renouncing ownership will leave the contract without an owner,\n * thereby removing any functionality that is only available to the owner.\n */\n function renounceOwnership() public virtual onlyOwner {\n _transferOwnership(address(0));\n }\n\n /**\n * @dev Transfers ownership of the contract to a new account (`newOwner`).\n * Can only be called by the current owner.\n */\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(newOwner != address(0), \"Ownable: new owner is the zero address\");\n _transferOwnership(newOwner);\n }\n\n /**\n * @dev Transfers ownership of the contract to a new account (`newOwner`).\n * Internal function without access restriction.\n */\n function _transferOwnership(address newOwner) internal virtual {\n address oldOwner = _owner;\n _owner = newOwner;\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n" } }, "settings": { "remappings": [], "optimizer": { "enabled": true, "runs": 200 }, "evmVersion": "london", "libraries": {}, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } } } }}

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