{
  "contractName": "ILegacyConverter",
  "abi": [
    {
      "inputs": [
        {
          "internalType": "contract IERC20Token",
          "name": "_sourceToken",
          "type": "address"
        },
        {
          "internalType": "contract IERC20Token",
          "name": "_targetToken",
          "type": "address"
        },
        {
          "internalType": "uint256",
          "name": "_amount",
          "type": "uint256"
        },
        {
          "internalType": "uint256",
          "name": "_minReturn",
          "type": "uint256"
        }
      ],
      "name": "change",
      "outputs": [
        {
          "internalType": "uint256",
          "name": "",
          "type": "uint256"
        }
      ],
      "stateMutability": "nonpayable",
      "type": "function"
    }
  ],
  "metadata": "{\"compiler\":{\"version\":\"0.6.12+commit.27d51765\"},\"language\":\"Solidity\",\"output\":{\"abi\":[{\"inputs\":[{\"internalType\":\"contract IERC20Token\",\"name\":\"_sourceToken\",\"type\":\"address\"},{\"internalType\":\"contract IERC20Token\",\"name\":\"_targetToken\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"_amount\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"_minReturn\",\"type\":\"uint256\"}],\"name\":\"change\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"}],\"devdoc\":{\"kind\":\"dev\",\"methods\":{},\"version\":1},\"userdoc\":{\"kind\":\"user\",\"methods\":{},\"version\":1}},\"settings\":{\"compilationTarget\":{\"/home/lash/src/ext/cic/grassrootseconomics/bancor-contracts/solidity/contracts/BancorNetwork.sol\":\"ILegacyConverter\"},\"evmVersion\":\"istanbul\",\"libraries\":{},\"metadata\":{\"bytecodeHash\":\"ipfs\"},\"optimizer\":{\"enabled\":true,\"runs\":200},\"remappings\":[]},\"sources\":{\"/home/lash/src/ext/cic/grassrootseconomics/bancor-contracts/solidity/contracts/BancorNetwork.sol\":{\"keccak256\":\"0xb1817f3d45dd66177f17cf45f1b660186ee35575222a11c9bc0e0d44b32846ea\",\"license\":\"SEE LICENSE IN LICENSE\",\"urls\":[\"bzz-raw://ce648a9b8038bb11d1ed091a16aa831a973ff2896ae9aae6b34cb9a8d0e02b00\",\"dweb:/ipfs/QmQKqVVXV6dDBd8saigyEALeLwjG8nhqK8wLRqDGaKSDV6\"]},\"/home/lash/src/ext/cic/grassrootseconomics/bancor-contracts/solidity/contracts/IConversionPathFinder.sol\":{\"keccak256\":\"0x2d0f5b57bc448581a6e2296486ca618851138f40928049d75220623605915d7b\",\"license\":\"SEE LICENSE IN LICENSE\",\"urls\":[\"bzz-raw://2182eb05da8442792a5f3f4d8cdb2cf0bf9e952ca02638f3880cc59d5fd6dcb6\",\"dweb:/ipfs/QmSH9uWh6zTQkcBgD7VGGSzYW9DjdBDkUZUZ6zhzPWPPDz\"]},\"/home/lash/src/ext/cic/grassrootseconomics/bancor-contracts/solidity/contracts/bancorx/interfaces/IBancorX.sol\":{\"keccak256\":\"0x65b5780d710159c7540078c38406c53db37a349fb468a0bf21bdc6262e497951\",\"license\":\"SEE LICENSE IN LICENSE\",\"urls\":[\"bzz-raw://3df931a12770d10a22451326e38ae9d405d3e2716bdbdd6306b5e2361f6fe511\",\"dweb:/ipfs/QmcRBSaFLz516dAEqb8ZEiyx8ZTHZZ6rfxHn5roL2fHA3S\"]},\"/home/lash/src/ext/cic/grassrootseconomics/bancor-contracts/solidity/contracts/converter/interfaces/IBancorFormula.sol\":{\"keccak256\":\"0xf30c95034af4c4ec6e8a859e90cf7a0bada29a805ede76e04644107a7c677c4e\",\"license\":\"SEE LICENSE IN LICENSE\",\"urls\":[\"bzz-raw://b48070d4abf9c4a08c39e6c494fa9efd7389aa7f8b61b283c9ba02062b1c59b6\",\"dweb:/ipfs/Qme6U7SpspFPzMH2mTyKsXCnJEAgg1vX6NNFzuykbVSY5R\"]},\"/home/lash/src/ext/cic/grassrootseconomics/bancor-contracts/solidity/contracts/converter/interfaces/IConverter.sol\":{\"keccak256\":\"0x18b0d73a3d5ee951ede1b3f840ed35b40570e34975703079a4451555f4dd089b\",\"license\":\"SEE LICENSE IN LICENSE\",\"urls\":[\"bzz-raw://1cd7263f1ef60793e3929509150420037df9a1194c3d0f40bb2ff5516d6a373f\",\"dweb:/ipfs/QmNUbsZt2rzWPjStYycgz3vMbNP4VrAqZPRAK39QNqUoos\"]},\"/home/lash/src/ext/cic/grassrootseconomics/bancor-contracts/solidity/contracts/converter/interfaces/IConverterAnchor.sol\":{\"keccak256\":\"0x9448cdbe90293fb5c1a0808b77af8754a1025b59c45f432eee01f659361a6115\",\"license\":\"SEE LICENSE IN LICENSE\",\"urls\":[\"bzz-raw://1ef2bb2e1543c9324daf7f3fd086a57efb45b89f3d62b9d7a9fc78c138d24dbc\",\"dweb:/ipfs/QmVcXDib3K6xYJMBNxawmo4krJGiDfxb5oL64Lc3pi14XK\"]},\"/home/lash/src/ext/cic/grassrootseconomics/bancor-contracts/solidity/contracts/token/interfaces/IERC20Token.sol\":{\"keccak256\":\"0xe6f988c3156e88258474526a541d5a42b6a9adae98b04177a059d9f723bc82cd\",\"license\":\"SEE LICENSE IN LICENSE\",\"urls\":[\"bzz-raw://9a6eb77a5b9ce70995a11a6e48ac3985a4c70896fe5fe04d46146ad7c1c83ea3\",\"dweb:/ipfs/QmYvGSveZFG51tghwkVuu6eK9Jy8frHpfLxHTMyvNZN461\"]},\"/home/lash/src/ext/cic/grassrootseconomics/bancor-contracts/solidity/contracts/token/interfaces/IEtherToken.sol\":{\"keccak256\":\"0x6ed324da616d70af0b21fa073b1e5329b430e38b470177633a69710eff3da893\",\"license\":\"SEE LICENSE IN LICENSE\",\"urls\":[\"bzz-raw://44f94aa59c67de636423cbdef82efb7d8e0562e73dfc9049a48054156aebaf14\",\"dweb:/ipfs/Qmdn8KAP54s7X3J6TCoZPhCpS19aCQzFYZuFABugJ5JA5D\"]},\"/home/lash/src/ext/cic/grassrootseconomics/bancor-contracts/solidity/contracts/token/interfaces/ISmartToken.sol\":{\"keccak256\":\"0x5cfc15e7a23a9872059b0cea4d2ae902c3fc074a39e1c645036ce38ad47881ec\",\"license\":\"SEE LICENSE IN LICENSE\",\"urls\":[\"bzz-raw://890ee09d24de5778e34c4c27d1377d83d378e8f4a13fcb94d5102f61d4749cce\",\"dweb:/ipfs/QmT89f61fmsUN1BVdebKxUc5VU7sitiP33LNk7TTtF18oj\"]},\"/home/lash/src/ext/cic/grassrootseconomics/bancor-contracts/solidity/contracts/utility/ContractRegistryClient.sol\":{\"keccak256\":\"0x74caf88eff1cb113ad8277df9ba7933a6f1e0deea8fd1855157def3be833b859\",\"license\":\"SEE LICENSE IN LICENSE\",\"urls\":[\"bzz-raw://c7793c9f245736cd8413bc8c4b5c40b67949cbee32289a16d29c83cf59396ad6\",\"dweb:/ipfs/QmWony7b1buUrGnE32gjLAnSwkBYMrJ68vUcCwDMmp3MbJ\"]},\"/home/lash/src/ext/cic/grassrootseconomics/bancor-contracts/solidity/contracts/utility/Owned.sol\":{\"keccak256\":\"0x6ef69d9dcc80a8a36d5eb37783375cd5e4831c6d20c723fa6f6b6a06c0aeb53d\",\"license\":\"SEE LICENSE IN LICENSE\",\"urls\":[\"bzz-raw://5a5d087e2c5b47739615ef22e1f29749de44b43c9a37cfae32b3dfc498a258c4\",\"dweb:/ipfs/Qmd1mXKEQbmBxqHk326LGVzNoayXsam8gZNecknnYpBnyh\"]},\"/home/lash/src/ext/cic/grassrootseconomics/bancor-contracts/solidity/contracts/utility/ReentrancyGuard.sol\":{\"keccak256\":\"0x5ea87c10dd6e7e79212da712eb5f079c03361e6c96e299a4ffd9aaee8d6a3899\",\"license\":\"SEE LICENSE IN LICENSE\",\"urls\":[\"bzz-raw://882aac64a791df35a942480e6ce611d1acb399af4ac0c4ef0288965c3785bf50\",\"dweb:/ipfs/QmeWeYYFh5HZAzJ1SzPHoTcPvZrE4NPUVfmjvH9Q3m36Gg\"]},\"/home/lash/src/ext/cic/grassrootseconomics/bancor-contracts/solidity/contracts/utility/SafeMath.sol\":{\"keccak256\":\"0x1ab7391a19ca8a3ad2f3c4a1074e080d4d76dfdb834637bdd0c1e6b6acdf28af\",\"license\":\"SEE LICENSE IN LICENSE\",\"urls\":[\"bzz-raw://d6d8c99621ca884b72da2d84eddfec8ec8c5533915691d6eec94a07adf445608\",\"dweb:/ipfs/QmaXr6DN7VbfxfMn3PsTy7SAMgZVVXbdeaw11BsAjVL2x1\"]},\"/home/lash/src/ext/cic/grassrootseconomics/bancor-contracts/solidity/contracts/utility/TokenHandler.sol\":{\"keccak256\":\"0xf65b87e3bf3343e368da67878c19d1a043a1025b10e9053d3562b53b4aa447fe\",\"license\":\"SEE LICENSE IN LICENSE\",\"urls\":[\"bzz-raw://b85c5d96642c14c53b8d5062eecd4d27d3bdb457d1d0f130900763a75a512eb7\",\"dweb:/ipfs/QmUHtbqC1khqnRZXYn11Aykus4m5e9MVNUWqorxhpr5ipJ\"]},\"/home/lash/src/ext/cic/grassrootseconomics/bancor-contracts/solidity/contracts/utility/TokenHolder.sol\":{\"keccak256\":\"0xac6bc102eff6c1bb8c1bb4466eab50322c7c101e2e33d577dd3035f106627577\",\"license\":\"SEE LICENSE IN LICENSE\",\"urls\":[\"bzz-raw://9fdbda2d4509260ca3dd43654bdaea07ef18a5e04213ff16e38e3b4abad78a5f\",\"dweb:/ipfs/QmPb69rzX1DwDeEhhfzqQNS3U2bfGcFjXNaV5ffHsZHzfP\"]},\"/home/lash/src/ext/cic/grassrootseconomics/bancor-contracts/solidity/contracts/utility/Utils.sol\":{\"keccak256\":\"0x073efa69fcd6b5e60f841b28b366d63b62ff48ab12a06ce3f5a7f41afd6ce885\",\"license\":\"SEE LICENSE IN LICENSE\",\"urls\":[\"bzz-raw://e8b8ecb2d29197ca77f0ed98f728ace54e6edcfdf5cd1194ae22701607eaf608\",\"dweb:/ipfs/QmcsR6Q35Hurh3TrPkYAboicz9bQQoGCWmZLzUCDyhotH8\"]},\"/home/lash/src/ext/cic/grassrootseconomics/bancor-contracts/solidity/contracts/utility/interfaces/IContractRegistry.sol\":{\"keccak256\":\"0x3551889a83738b621c29ed66f1ecb6a843cca4217e54c9357198559b9cc92259\",\"license\":\"SEE LICENSE IN LICENSE\",\"urls\":[\"bzz-raw://231a59c8f2665adeda8c7e6930832409c9b991fd27ad84b3a24335e7bf269bbe\",\"dweb:/ipfs/QmeJJbn1EAUbZenruTEdJAnwUn3dxsVNeJvxPe81qKEGqL\"]},\"/home/lash/src/ext/cic/grassrootseconomics/bancor-contracts/solidity/contracts/utility/interfaces/IOwned.sol\":{\"keccak256\":\"0xc60a9d197abc28c1906ed4d18b59caa0242db754a0e1f67af6e6277593530dae\",\"license\":\"SEE LICENSE IN LICENSE\",\"urls\":[\"bzz-raw://a8c6f3e6525a81a5165ccbf04f73f6c389c14b74135d11a7b5f70b1c9bdac75c\",\"dweb:/ipfs/QmaPu4Z7yUPc9sMADmoTZVY6AnyDSYHtNNCx3mm4VkJwhP\"]},\"/home/lash/src/ext/cic/grassrootseconomics/bancor-contracts/solidity/contracts/utility/interfaces/ITokenHolder.sol\":{\"keccak256\":\"0x9ccb8ab04d0bd874ba7aae5277e60f35c36918922649a0596bf3664ed257bfe2\",\"license\":\"SEE LICENSE IN LICENSE\",\"urls\":[\"bzz-raw://b65e6db19cd244c9f3545695de5fd7573711c49fb306631ddbf0e1d2fa9fb589\",\"dweb:/ipfs/QmZeu5KYVMTbTx7h2BVUq52fpwL9Q44AUfzeVksucDohgf\"]},\"/home/lash/src/ext/cic/grassrootseconomics/bancor-contracts/solidity/contracts/utility/interfaces/IWhitelist.sol\":{\"keccak256\":\"0x356ad553ceeaea04d7cb8f0d6a5663c47dfccb2bd82517348128f032416ee34a\",\"license\":\"SEE LICENSE IN LICENSE\",\"urls\":[\"bzz-raw://9ea3bbb9945144ead2c1392351f2f9f7444af78569f2b95da2e68bb6b919db52\",\"dweb:/ipfs/QmPyUAk44Kj7nJB4tzYqeSXWHyYP51mRNynEmWra9m4eKS\"]}},\"version\":1}",
  "bytecode": "0x",
  "deployedBytecode": "0x",
  "immutableReferences": {},
  "sourceMap": "",
  "deployedSourceMap": "",
  "source": "// SPDX-License-Identifier: SEE LICENSE IN LICENSE\r\npragma solidity 0.6.12;\r\nimport \"./IConversionPathFinder.sol\";\r\nimport \"./converter/interfaces/IConverter.sol\";\r\nimport \"./converter/interfaces/IConverterAnchor.sol\";\r\nimport \"./converter/interfaces/IBancorFormula.sol\";\r\nimport \"./utility/ContractRegistryClient.sol\";\r\nimport \"./utility/ReentrancyGuard.sol\";\r\nimport \"./utility/TokenHolder.sol\";\r\nimport \"./utility/SafeMath.sol\";\r\nimport \"./token/interfaces/IEtherToken.sol\";\r\nimport \"./token/interfaces/ISmartToken.sol\";\r\nimport \"./bancorx/interfaces/IBancorX.sol\";\r\n\r\n// interface of older converters for backward compatibility\r\ninterface ILegacyConverter {\r\n    function change(IERC20Token _sourceToken, IERC20Token _targetToken, uint256 _amount, uint256 _minReturn) external returns (uint256);\r\n}\r\n\r\n/**\r\n  * @dev The BancorNetwork contract is the main entry point for Bancor token conversions.\r\n  * It also allows for the conversion of any token in the Bancor Network to any other token in a single\r\n  * transaction by providing a conversion path.\r\n  *\r\n  * A note on Conversion Path: Conversion path is a data structure that is used when converting a token\r\n  * to another token in the Bancor Network, when the conversion cannot necessarily be done by a single\r\n  * converter and might require multiple 'hops'.\r\n  * The path defines which converters should be used and what kind of conversion should be done in each step.\r\n  *\r\n  * The path format doesn't include complex structure; instead, it is represented by a single array\r\n  * in which each 'hop' is represented by a 2-tuple - converter anchor & target token.\r\n  * In addition, the first element is always the source token.\r\n  * The converter anchor is only used as a pointer to a converter (since converter addresses are more\r\n  * likely to change as opposed to anchor addresses).\r\n  *\r\n  * Format:\r\n  * [source token, converter anchor, target token, converter anchor, target token...]\r\n*/\r\ncontract BancorNetwork is TokenHolder, ContractRegistryClient, ReentrancyGuard {\r\n    using SafeMath for uint256;\r\n\r\n    uint256 private constant PPM_RESOLUTION = 1000000;\r\n    IERC20Token private constant ETH_RESERVE_ADDRESS = IERC20Token(0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE);\r\n\r\n    struct ConversionStep {\r\n        IConverter converter;\r\n        IConverterAnchor anchor;\r\n        IERC20Token sourceToken;\r\n        IERC20Token targetToken;\r\n        address payable beneficiary;\r\n        bool isV28OrHigherConverter;\r\n        bool processAffiliateFee;\r\n    }\r\n\r\n    uint256 public maxAffiliateFee = 30000;     // maximum affiliate-fee\r\n\r\n    mapping (IERC20Token => bool) public etherTokens;   // list of all supported ether tokens\r\n\r\n    /**\r\n      * @dev triggered when a conversion between two tokens occurs\r\n      *\r\n      * @param _smartToken  anchor governed by the converter\r\n      * @param _fromToken   source ERC20 token\r\n      * @param _toToken     target ERC20 token\r\n      * @param _fromAmount  amount converted, in the source token\r\n      * @param _toAmount    amount returned, minus conversion fee\r\n      * @param _trader      wallet that initiated the trade\r\n    */\r\n    event Conversion(\r\n        IConverterAnchor indexed _smartToken,\r\n        IERC20Token indexed _fromToken,\r\n        IERC20Token indexed _toToken,\r\n        uint256 _fromAmount,\r\n        uint256 _toAmount,\r\n        address _trader\r\n    );\r\n\r\n    /**\r\n      * @dev initializes a new BancorNetwork instance\r\n      *\r\n      * @param _registry    address of a contract registry contract\r\n    */\r\n    constructor(IContractRegistry _registry) ContractRegistryClient(_registry) public {\r\n        etherTokens[ETH_RESERVE_ADDRESS] = true;\r\n    }\r\n\r\n    /**\r\n      * @dev allows the owner to update the maximum affiliate-fee\r\n      *\r\n      * @param _maxAffiliateFee   maximum affiliate-fee\r\n    */\r\n    function setMaxAffiliateFee(uint256 _maxAffiliateFee)\r\n        public\r\n        ownerOnly\r\n    {\r\n        require(_maxAffiliateFee <= PPM_RESOLUTION, \"ERR_INVALID_AFFILIATE_FEE\");\r\n        maxAffiliateFee = _maxAffiliateFee;\r\n    }\r\n\r\n    /**\r\n      * @dev allows the owner to register/unregister ether tokens\r\n      *\r\n      * @param _token       ether token contract address\r\n      * @param _register    true to register, false to unregister\r\n    */\r\n    function registerEtherToken(IEtherToken _token, bool _register)\r\n        public\r\n        ownerOnly\r\n        validAddress(address(_token))\r\n        notThis(address(_token))\r\n    {\r\n        etherTokens[_token] = _register;\r\n    }\r\n\r\n    /**\r\n      * @dev returns the conversion path between two tokens in the network\r\n      * note that this method is quite expensive in terms of gas and should generally be called off-chain\r\n      *\r\n      * @param _sourceToken source token address\r\n      * @param _targetToken target token address\r\n      *\r\n      * @return conversion path between the two tokens\r\n    */\r\n    function conversionPath(IERC20Token _sourceToken, IERC20Token _targetToken) public view returns (address[] memory) {\r\n        IConversionPathFinder pathFinder = IConversionPathFinder(addressOf(CONVERSION_PATH_FINDER));\r\n        return pathFinder.findPath(_sourceToken, _targetToken);\r\n    }\r\n\r\n    /**\r\n      * @dev returns the expected target amount of converting a given amount on a given path\r\n      * note that there is no support for circular paths\r\n      *\r\n      * @param _path        conversion path (see conversion path format above)\r\n      * @param _amount      amount of _path[0] tokens received from the sender\r\n      *\r\n      * @return expected target amount\r\n    */\r\n    function rateByPath(address[] memory _path, uint256 _amount) public view returns (uint256) {\r\n        uint256 amount;\r\n        uint256 fee;\r\n        uint256 supply;\r\n        uint256 balance;\r\n        uint32 weight;\r\n        IConverter converter;\r\n        IBancorFormula formula = IBancorFormula(addressOf(BANCOR_FORMULA));\r\n\r\n        amount = _amount;\r\n\r\n        // verify that the number of elements is larger than 2 and odd\r\n        require(_path.length > 2 && _path.length % 2 == 1, \"ERR_INVALID_PATH\");\r\n\r\n        // iterate over the conversion path\r\n        for (uint256 i = 2; i < _path.length; i += 2) {\r\n            IERC20Token sourceToken = IERC20Token(_path[i - 2]);\r\n            address anchor = _path[i - 1];\r\n            IERC20Token targetToken = IERC20Token(_path[i]);\r\n\r\n            converter = IConverter(payable(IConverterAnchor(anchor).owner()));\r\n\r\n            // backward compatibility\r\n            sourceToken = getConverterTokenAddress(converter, sourceToken);\r\n            targetToken = getConverterTokenAddress(converter, targetToken);\r\n\r\n            if (address(targetToken) == anchor) { // buy the smart token\r\n                // check if the current smart token has changed\r\n                if (i < 3 || anchor != _path[i - 3])\r\n                    supply = ISmartToken(anchor).totalSupply();\r\n\r\n                // get the amount & the conversion fee\r\n                balance = converter.getConnectorBalance(sourceToken);\r\n                (, weight, , , ) = converter.connectors(sourceToken);\r\n                amount = formula.purchaseTargetAmount(supply, balance, weight, amount);\r\n                fee = amount.mul(converter.conversionFee()).div(PPM_RESOLUTION);\r\n                amount -= fee;\r\n\r\n                // update the smart token supply for the next iteration\r\n                supply = supply.add(amount);\r\n            }\r\n            else if (address(sourceToken) == anchor) { // sell the smart token\r\n                // check if the current smart token has changed\r\n                if (i < 3 || anchor != _path[i - 3])\r\n                    supply = ISmartToken(anchor).totalSupply();\r\n\r\n                // get the amount & the conversion fee\r\n                balance = converter.getConnectorBalance(targetToken);\r\n                (, weight, , , ) = converter.connectors(targetToken);\r\n                amount = formula.saleTargetAmount(supply, balance, weight, amount);\r\n                fee = amount.mul(converter.conversionFee()).div(PPM_RESOLUTION);\r\n                amount -= fee;\r\n\r\n                // update the smart token supply for the next iteration\r\n                supply = supply.sub(amount);\r\n            }\r\n            else { // cross reserve conversion\r\n                (amount, fee) = getReturn(converter, sourceToken, targetToken, amount);\r\n            }\r\n        }\r\n\r\n        return amount;\r\n    }\r\n\r\n    /**\r\n      * @dev converts the token to any other token in the bancor network by following\r\n      * a predefined conversion path and transfers the result tokens to a target account\r\n      * affiliate account/fee can also be passed in to receive a conversion fee (on top of the liquidity provider fees)\r\n      * note that the network should already have been given allowance of the source token (if not ETH)\r\n      *\r\n      * @param _path                conversion path, see conversion path format above\r\n      * @param _amount              amount to convert from, in the source token\r\n      * @param _minReturn           if the conversion results in an amount smaller than the minimum return - it is cancelled, must be greater than zero\r\n      * @param _beneficiary         account that will receive the conversion result or 0x0 to send the result to the sender account\r\n      * @param _affiliateAccount    wallet address to receive the affiliate fee or 0x0 to disable affiliate fee\r\n      * @param _affiliateFee        affiliate fee in PPM or 0 to disable affiliate fee\r\n      *\r\n      * @return amount of tokens received from the conversion\r\n    */\r\n    function convertByPath(\r\n        address[] memory _path,\r\n        uint256 _amount,\r\n        uint256 _minReturn,\r\n        address payable _beneficiary,\r\n        address _affiliateAccount,\r\n        uint256 _affiliateFee)\r\n        public\r\n        payable\r\n        protected\r\n        greaterThanZero(_minReturn)\r\n        returns (uint256)\r\n    {\r\n        // verify that the path contrains at least a single 'hop' and that the number of elements is odd\r\n        require(_path.length > 2 && _path.length % 2 == 1, \"ERR_INVALID_PATH\");\r\n\r\n        // validate msg.value and prepare the source token for the conversion\r\n        handleSourceToken(IERC20Token(_path[0]), IConverterAnchor(_path[1]), _amount);\r\n\r\n        // check if affiliate fee is enabled\r\n        bool affiliateFeeEnabled = false;\r\n        if (address(_affiliateAccount) == address(0)) {\r\n            require(_affiliateFee == 0, \"ERR_INVALID_AFFILIATE_FEE\");\r\n        }\r\n        else {\r\n            require(0 < _affiliateFee && _affiliateFee <= maxAffiliateFee, \"ERR_INVALID_AFFILIATE_FEE\");\r\n            affiliateFeeEnabled = true;\r\n        }\r\n\r\n        // check if beneficiary is set\r\n        address payable beneficiary = msg.sender;\r\n        if (_beneficiary != address(0))\r\n            beneficiary = _beneficiary;\r\n\r\n        // convert and get the resulting amount\r\n        ConversionStep[] memory data = createConversionData(_path, beneficiary, affiliateFeeEnabled);\r\n        uint256 amount = doConversion(data, _amount, _minReturn, _affiliateAccount, _affiliateFee);\r\n\r\n        // handle the conversion target tokens\r\n        handleTargetToken(data, amount, beneficiary);\r\n\r\n        return amount;\r\n    }\r\n\r\n    /**\r\n      * @dev converts any other token to BNT in the bancor network by following\r\n      a predefined conversion path and transfers the result to an account on a different blockchain\r\n      * note that the network should already have been given allowance of the source token (if not ETH)\r\n      *\r\n      * @param _path                conversion path, see conversion path format above\r\n      * @param _amount              amount to convert from, in the source token\r\n      * @param _minReturn           if the conversion results in an amount smaller than the minimum return - it is cancelled, must be greater than zero\r\n      * @param _targetBlockchain    blockchain BNT will be issued on\r\n      * @param _targetAccount       address/account on the target blockchain to send the BNT to\r\n      * @param _conversionId        pre-determined unique (if non zero) id which refers to this transaction\r\n      *\r\n      * @return the amount of BNT received from this conversion\r\n    */\r\n    function xConvert(\r\n        address[] memory _path,\r\n        uint256 _amount,\r\n        uint256 _minReturn,\r\n        bytes32 _targetBlockchain,\r\n        bytes32 _targetAccount,\r\n        uint256 _conversionId\r\n    )\r\n        public\r\n        payable\r\n        returns (uint256)\r\n    {\r\n        return xConvert2(_path, _amount, _minReturn, _targetBlockchain, _targetAccount, _conversionId, address(0), 0);\r\n    }\r\n\r\n    /**\r\n      * @dev converts any other token to BNT in the bancor network by following\r\n      a predefined conversion path and transfers the result to an account on a different blockchain\r\n      * note that the network should already have been given allowance of the source token (if not ETH)\r\n      *\r\n      * @param _path                conversion path, see conversion path format above\r\n      * @param _amount              amount to convert from, in the source token\r\n      * @param _minReturn           if the conversion results in an amount smaller than the minimum return - it is cancelled, must be greater than zero\r\n      * @param _targetBlockchain    blockchain BNT will be issued on\r\n      * @param _targetAccount       address/account on the target blockchain to send the BNT to\r\n      * @param _conversionId        pre-determined unique (if non zero) id which refers to this transaction\r\n      * @param _affiliateAccount    affiliate account\r\n      * @param _affiliateFee        affiliate fee in PPM\r\n      *\r\n      * @return the amount of BNT received from this conversion\r\n    */\r\n    function xConvert2(\r\n        address[] memory _path,\r\n        uint256 _amount,\r\n        uint256 _minReturn,\r\n        bytes32 _targetBlockchain,\r\n        bytes32 _targetAccount,\r\n        uint256 _conversionId,\r\n        address _affiliateAccount,\r\n        uint256 _affiliateFee\r\n    )\r\n        public\r\n        payable\r\n        greaterThanZero(_minReturn)\r\n        returns (uint256)\r\n    {\r\n        IERC20Token targetToken = IERC20Token(_path[_path.length - 1]);\r\n        IBancorX bancorX = IBancorX(addressOf(BANCOR_X));\r\n\r\n        // verify that the destination token is BNT\r\n        require(targetToken == IERC20Token(addressOf(BNT_TOKEN)), \"ERR_INVALID_TARGET_TOKEN\");\r\n\r\n        // convert and get the resulting amount\r\n        uint256 amount = convertByPath(_path, _amount, _minReturn, payable(address(this)), _affiliateAccount, _affiliateFee);\r\n\r\n        // grant BancorX allowance\r\n        ensureAllowance(targetToken, address(bancorX), amount);\r\n\r\n        // transfer the resulting amount to BancorX\r\n        bancorX.xTransfer(_targetBlockchain, _targetAccount, amount, _conversionId);\r\n\r\n        return amount;\r\n    }\r\n\r\n    /**\r\n      * @dev allows a user to convert a token that was sent from another blockchain into any other\r\n      * token on the BancorNetwork\r\n      * ideally this transaction is created before the previous conversion is even complete, so\r\n      * so the input amount isn't known at that point - the amount is actually take from the\r\n      * BancorX contract directly by specifying the conversion id\r\n      *\r\n      * @param _path            conversion path\r\n      * @param _bancorX         address of the BancorX contract for the source token\r\n      * @param _conversionId    pre-determined unique (if non zero) id which refers to this conversion\r\n      * @param _minReturn       if the conversion results in an amount smaller than the minimum return - it is cancelled, must be nonzero\r\n      * @param _beneficiary     wallet to receive the conversion result\r\n      *\r\n      * @return amount of tokens received from the conversion\r\n    */\r\n    function completeXConversion(address[] memory _path, IBancorX _bancorX, uint256 _conversionId, uint256 _minReturn, address payable _beneficiary)\r\n        public returns (uint256)\r\n    {\r\n        // verify that the source token is the BancorX token\r\n        require(IERC20Token(_path[0]) == _bancorX.token(), \"ERR_INVALID_SOURCE_TOKEN\");\r\n\r\n        // get conversion amount from BancorX contract\r\n        uint256 amount = _bancorX.getXTransferAmount(_conversionId, msg.sender);\r\n\r\n        // perform the conversion\r\n        return convertByPath(_path, amount, _minReturn, _beneficiary, address(0), 0);\r\n    }\r\n\r\n    /**\r\n      * @dev executes the actual conversion by following the conversion path\r\n      *\r\n      * @param _data                conversion data, see ConversionStep struct above\r\n      * @param _amount              amount to convert from, in the source token\r\n      * @param _minReturn           if the conversion results in an amount smaller than the minimum return - it is cancelled, must be greater than zero\r\n      * @param _affiliateAccount    affiliate account\r\n      * @param _affiliateFee        affiliate fee in PPM\r\n      *\r\n      * @return amount of tokens received from the conversion\r\n    */\r\n    function doConversion(\r\n        ConversionStep[] memory _data,\r\n        uint256 _amount,\r\n        uint256 _minReturn,\r\n        address _affiliateAccount,\r\n        uint256 _affiliateFee\r\n    ) private returns (uint256) {\r\n        uint256 toAmount;\r\n        uint256 fromAmount = _amount;\r\n\r\n        // iterate over the conversion data\r\n        for (uint256 i = 0; i < _data.length; i++) {\r\n            ConversionStep memory stepData = _data[i];\r\n\r\n            // newer converter\r\n            if (stepData.isV28OrHigherConverter) {\r\n                // transfer the tokens to the converter only if the network contract currently holds the tokens\r\n                // not needed with ETH or if it's the first conversion step\r\n                if (i != 0 && _data[i - 1].beneficiary == address(this) && !etherTokens[stepData.sourceToken])\r\n                    safeTransfer(stepData.sourceToken, address(stepData.converter), fromAmount);\r\n            }\r\n            // older converter\r\n            // if the source token is the smart token, no need to do any transfers as the converter controls it\r\n            else if (stepData.sourceToken != ISmartToken(address(stepData.anchor))) {\r\n                // grant allowance for it to transfer the tokens from the network contract\r\n                ensureAllowance(stepData.sourceToken, address(stepData.converter), fromAmount);\r\n            }\r\n\r\n            // do the conversion\r\n            if (!stepData.isV28OrHigherConverter)\r\n                toAmount = ILegacyConverter(address(stepData.converter)).change(stepData.sourceToken, stepData.targetToken, fromAmount, 1);\r\n            else if (etherTokens[stepData.sourceToken])\r\n                toAmount = stepData.converter.convert{ value: msg.value }(stepData.sourceToken, stepData.targetToken, fromAmount, msg.sender, stepData.beneficiary);\r\n            else\r\n                toAmount = stepData.converter.convert(stepData.sourceToken, stepData.targetToken, fromAmount, msg.sender, stepData.beneficiary);\r\n\r\n            // pay affiliate-fee if needed\r\n            if (stepData.processAffiliateFee) {\r\n                uint256 affiliateAmount = toAmount.mul(_affiliateFee).div(PPM_RESOLUTION);\r\n                require(stepData.targetToken.transfer(_affiliateAccount, affiliateAmount), \"ERR_FEE_TRANSFER_FAILED\");\r\n                toAmount -= affiliateAmount;\r\n            }\r\n\r\n            emit Conversion(stepData.anchor, stepData.sourceToken, stepData.targetToken, fromAmount, toAmount, msg.sender);\r\n            fromAmount = toAmount;\r\n        }\r\n\r\n        // ensure the trade meets the minimum requested amount\r\n        require(toAmount >= _minReturn, \"ERR_RETURN_TOO_LOW\");\r\n\r\n        return toAmount;\r\n    }\r\n\r\n    /**\r\n      * @dev validates msg.value and prepares the conversion source token for the conversion\r\n      *\r\n      * @param _sourceToken source token of the first conversion step\r\n      * @param _anchor      converter anchor of the first conversion step\r\n      * @param _amount      amount to convert from, in the source token\r\n    */\r\n    function handleSourceToken(IERC20Token _sourceToken, IConverterAnchor _anchor, uint256 _amount) private {\r\n        IConverter firstConverter = IConverter(payable(_anchor.owner()));\r\n        bool isNewerConverter = isV28OrHigherConverter(firstConverter);\r\n\r\n        // ETH\r\n        if (msg.value > 0) {\r\n            // validate msg.value\r\n            require(msg.value == _amount, \"ERR_ETH_AMOUNT_MISMATCH\");\r\n\r\n            // EtherToken converter - deposit the ETH into the EtherToken\r\n            // note that it can still be a non ETH converter if the path is wrong\r\n            // but such conversion will simply revert\r\n            if (!isNewerConverter)\r\n                IEtherToken(address(getConverterEtherTokenAddress(firstConverter))).deposit{ value: msg.value }();\r\n        }\r\n        // EtherToken\r\n        else if (etherTokens[_sourceToken]) {\r\n            // claim the tokens - if the source token is ETH reserve, this call will fail\r\n            // since in that case the transaction must be sent with msg.value\r\n            safeTransferFrom(_sourceToken, msg.sender, address(this), _amount);\r\n\r\n            // ETH converter - withdraw the ETH\r\n            if (isNewerConverter)\r\n                IEtherToken(address(_sourceToken)).withdraw(_amount);\r\n        }\r\n        // other ERC20 token\r\n        else {\r\n            // newer converter - transfer the tokens from the sender directly to the converter\r\n            // otherwise claim the tokens\r\n            if (isNewerConverter)\r\n                safeTransferFrom(_sourceToken, msg.sender, address(firstConverter), _amount);\r\n            else\r\n                safeTransferFrom(_sourceToken, msg.sender, address(this), _amount);\r\n        }\r\n    }\r\n\r\n    /**\r\n      * @dev handles the conversion target token if the network still holds it at the end of the conversion\r\n      *\r\n      * @param _data        conversion data, see ConversionStep struct above\r\n      * @param _amount      conversion target amount\r\n      * @param _beneficiary wallet to receive the conversion result\r\n    */\r\n    function handleTargetToken(ConversionStep[] memory _data, uint256 _amount, address payable _beneficiary) private {\r\n        ConversionStep memory stepData = _data[_data.length - 1];\r\n\r\n        // network contract doesn't hold the tokens, do nothing\r\n        if (stepData.beneficiary != address(this))\r\n            return;\r\n\r\n        IERC20Token targetToken = stepData.targetToken;\r\n\r\n        // ETH / EtherToken\r\n        if (etherTokens[targetToken]) {\r\n            // newer converter should send ETH directly to the beneficiary\r\n            assert(!stepData.isV28OrHigherConverter);\r\n\r\n            // EtherToken converter - withdraw the ETH and transfer to the beneficiary\r\n            IEtherToken(address(targetToken)).withdrawTo(_beneficiary, _amount);\r\n        }\r\n        // other ERC20 token\r\n        else {\r\n            safeTransfer(targetToken, _beneficiary, _amount);\r\n        }\r\n    }\r\n\r\n    /**\r\n      * @dev creates a memory cache of all conversion steps data to minimize logic and external calls during conversions\r\n      *\r\n      * @param _conversionPath      conversion path, see conversion path format above\r\n      * @param _beneficiary         wallet to receive the conversion result\r\n      * @param _affiliateFeeEnabled true if affiliate fee was requested by the sender, false if not\r\n      *\r\n      * @return cached conversion data to be ingested later on by the conversion flow\r\n    */\r\n    function createConversionData(address[] memory _conversionPath, address payable _beneficiary, bool _affiliateFeeEnabled) private view returns (ConversionStep[] memory) {\r\n        ConversionStep[] memory data = new ConversionStep[](_conversionPath.length / 2);\r\n\r\n        bool affiliateFeeProcessed = false;\r\n        IERC20Token bntToken = IERC20Token(addressOf(BNT_TOKEN));\r\n        // iterate the conversion path and create the conversion data for each step\r\n        uint256 i;\r\n        for (i = 0; i < _conversionPath.length - 1; i += 2) {\r\n            IConverterAnchor anchor = IConverterAnchor(_conversionPath[i + 1]);\r\n            IConverter converter = IConverter(payable(anchor.owner()));\r\n            IERC20Token targetToken = IERC20Token(_conversionPath[i + 2]);\r\n\r\n            // check if the affiliate fee should be processed in this step\r\n            bool processAffiliateFee = _affiliateFeeEnabled && !affiliateFeeProcessed && targetToken == bntToken;\r\n            if (processAffiliateFee)\r\n                affiliateFeeProcessed = true;\r\n\r\n            data[i / 2] = ConversionStep({\r\n                // set the converter anchor\r\n                anchor: anchor,\r\n\r\n                // set the converter\r\n                converter: converter,\r\n\r\n                // set the source/target tokens\r\n                sourceToken: IERC20Token(_conversionPath[i]),\r\n                targetToken: targetToken,\r\n\r\n                // requires knowledge about the next step, so initialize in the next phase\r\n                beneficiary: address(0),\r\n\r\n                // set flags\r\n                isV28OrHigherConverter: isV28OrHigherConverter(converter),\r\n                processAffiliateFee: processAffiliateFee\r\n            });\r\n        }\r\n\r\n        // ETH support\r\n        // source is ETH\r\n        ConversionStep memory stepData = data[0];\r\n        if (etherTokens[stepData.sourceToken]) {\r\n            // newer converter - replace the source token address with ETH reserve address\r\n            if (stepData.isV28OrHigherConverter)\r\n                stepData.sourceToken = ETH_RESERVE_ADDRESS;\r\n            // older converter - replace the source token with the EtherToken address used by the converter\r\n            else\r\n                stepData.sourceToken = getConverterEtherTokenAddress(stepData.converter);\r\n        }\r\n\r\n        // target is ETH\r\n        stepData = data[data.length - 1];\r\n        if (etherTokens[stepData.targetToken]) {\r\n            // newer converter - replace the target token address with ETH reserve address\r\n            if (stepData.isV28OrHigherConverter)\r\n                stepData.targetToken = ETH_RESERVE_ADDRESS;\r\n            // older converter - replace the target token with the EtherToken address used by the converter\r\n            else\r\n                stepData.targetToken = getConverterEtherTokenAddress(stepData.converter);\r\n        }\r\n\r\n        // set the beneficiary for each step\r\n        for (i = 0; i < data.length; i++) {\r\n            stepData = data[i];\r\n\r\n            // first check if the converter in this step is newer as older converters don't even support the beneficiary argument\r\n            if (stepData.isV28OrHigherConverter) {\r\n                // if affiliate fee is processed in this step, beneficiary is the network contract\r\n                if (stepData.processAffiliateFee)\r\n                    stepData.beneficiary = payable(address(this));\r\n                // if it's the last step, beneficiary is the final beneficiary\r\n                else if (i == data.length - 1)\r\n                    stepData.beneficiary = _beneficiary;\r\n                // if the converter in the next step is newer, beneficiary is the next converter\r\n                else if (data[i + 1].isV28OrHigherConverter)\r\n                    stepData.beneficiary = address(data[i + 1].converter);\r\n                // the converter in the next step is older, beneficiary is the network contract\r\n                else\r\n                    stepData.beneficiary = payable(address(this));\r\n            }\r\n            else {\r\n                // converter in this step is older, beneficiary is the network contract\r\n                stepData.beneficiary = payable(address(this));\r\n            }\r\n        }\r\n\r\n        return data;\r\n    }\r\n\r\n    /**\r\n      * @dev utility, checks whether allowance for the given spender exists and approves one if it doesn't.\r\n      * Note that we use the non standard erc-20 interface in which `approve` has no return value so that\r\n      * this function will work for both standard and non standard tokens\r\n      *\r\n      * @param _token   token to check the allowance in\r\n      * @param _spender approved address\r\n      * @param _value   allowance amount\r\n    */\r\n    function ensureAllowance(IERC20Token _token, address _spender, uint256 _value) private {\r\n        uint256 allowance = _token.allowance(address(this), _spender);\r\n        if (allowance < _value) {\r\n            if (allowance > 0)\r\n                safeApprove(_token, _spender, 0);\r\n            safeApprove(_token, _spender, _value);\r\n        }\r\n    }\r\n\r\n    // legacy - returns the address of an EtherToken used by the converter\r\n    function getConverterEtherTokenAddress(IConverter _converter) private view returns (IERC20Token) {\r\n        uint256 reserveCount = _converter.connectorTokenCount();\r\n        for (uint256 i = 0; i < reserveCount; i++) {\r\n            IERC20Token reserveTokenAddress = _converter.connectorTokens(i);\r\n            if (etherTokens[reserveTokenAddress])\r\n                return reserveTokenAddress;\r\n        }\r\n\r\n        return ETH_RESERVE_ADDRESS;\r\n    }\r\n\r\n    // legacy - if the token is an ether token, returns the ETH reserve address\r\n    // used by the converter, otherwise returns the input token address\r\n    function getConverterTokenAddress(IConverter _converter, IERC20Token _token) private view returns (IERC20Token) {\r\n        if (!etherTokens[_token])\r\n            return _token;\r\n\r\n        if (isV28OrHigherConverter(_converter))\r\n            return ETH_RESERVE_ADDRESS;\r\n\r\n        return getConverterEtherTokenAddress(_converter);\r\n    }\r\n\r\n    bytes4 private constant GET_RETURN_FUNC_SELECTOR = bytes4(keccak256(\"getReturn(address,address,uint256)\"));\r\n\r\n    // using a static call to get the return from older converters\r\n    function getReturn(IConverter _dest, IERC20Token _sourceToken, IERC20Token _targetToken, uint256 _amount) internal view returns (uint256, uint256) {\r\n        bytes memory data = abi.encodeWithSelector(GET_RETURN_FUNC_SELECTOR, _sourceToken, _targetToken, _amount);\r\n        (bool success, bytes memory returnData) = address(_dest).staticcall(data);\r\n\r\n        if (success) {\r\n            if (returnData.length == 64) {\r\n                return abi.decode(returnData, (uint256, uint256));\r\n            }\r\n\r\n            if (returnData.length == 32) {\r\n                return (abi.decode(returnData, (uint256)), 0);\r\n            }\r\n        }\r\n\r\n        return (0, 0);\r\n    }\r\n\r\n    bytes4 private constant IS_V28_OR_HIGHER_FUNC_SELECTOR = bytes4(keccak256(\"isV28OrHigher()\"));\r\n\r\n    // using a static call to identify converter version\r\n    // can't rely on the version number since the function had a different signature in older converters\r\n    function isV28OrHigherConverter(IConverter _converter) internal view returns (bool) {\r\n        bytes memory data = abi.encodeWithSelector(IS_V28_OR_HIGHER_FUNC_SELECTOR);\r\n        (bool success, bytes memory returnData) = address(_converter).staticcall{ gas: 4000 }(data);\r\n\r\n        if (success && returnData.length == 32) {\r\n            return abi.decode(returnData, (bool));\r\n        }\r\n\r\n        return false;\r\n    }\r\n\r\n    /**\r\n      * @dev deprecated, backward compatibility\r\n    */\r\n    function getReturnByPath(address[] memory _path, uint256 _amount) public view returns (uint256, uint256) {\r\n        return (rateByPath(_path, _amount), 0);\r\n    }\r\n\r\n    /**\r\n      * @dev deprecated, backward compatibility\r\n    */\r\n    function convert(address[] memory _path, uint256 _amount, uint256 _minReturn) public payable returns (uint256) {\r\n        return convertByPath(_path, _amount, _minReturn, address(0), address(0), 0);\r\n    }\r\n\r\n    /**\r\n      * @dev deprecated, backward compatibility\r\n    */\r\n    function convert2(\r\n        address[] memory _path,\r\n        uint256 _amount,\r\n        uint256 _minReturn,\r\n        address _affiliateAccount,\r\n        uint256 _affiliateFee\r\n    )\r\n        public\r\n        payable\r\n        returns (uint256)\r\n    {\r\n        return convertByPath(_path, _amount, _minReturn, address(0), _affiliateAccount, _affiliateFee);\r\n    }\r\n\r\n    /**\r\n      * @dev deprecated, backward compatibility\r\n    */\r\n    function convertFor(address[] memory _path, uint256 _amount, uint256 _minReturn, address payable _beneficiary) public payable returns (uint256) {\r\n        return convertByPath(_path, _amount, _minReturn, _beneficiary, address(0), 0);\r\n    }\r\n\r\n    /**\r\n      * @dev deprecated, backward compatibility\r\n    */\r\n    function convertFor2(\r\n        address[] memory _path,\r\n        uint256 _amount,\r\n        uint256 _minReturn,\r\n        address payable _beneficiary,\r\n        address _affiliateAccount,\r\n        uint256 _affiliateFee\r\n    )\r\n        public\r\n        payable\r\n        greaterThanZero(_minReturn)\r\n        returns (uint256)\r\n    {\r\n        return convertByPath(_path, _amount, _minReturn, _beneficiary, _affiliateAccount, _affiliateFee);\r\n    }\r\n\r\n    /**\r\n      * @dev deprecated, backward compatibility\r\n    */\r\n    function claimAndConvert(address[] memory _path, uint256 _amount, uint256 _minReturn) public returns (uint256) {\r\n        return convertByPath(_path, _amount, _minReturn, address(0), address(0), 0);\r\n    }\r\n\r\n    /**\r\n      * @dev deprecated, backward compatibility\r\n    */\r\n    function claimAndConvert2(\r\n        address[] memory _path,\r\n        uint256 _amount,\r\n        uint256 _minReturn,\r\n        address _affiliateAccount,\r\n        uint256 _affiliateFee\r\n    )\r\n        public\r\n        returns (uint256)\r\n    {\r\n        return convertByPath(_path, _amount, _minReturn, address(0), _affiliateAccount, _affiliateFee);\r\n    }\r\n\r\n    /**\r\n      * @dev deprecated, backward compatibility\r\n    */\r\n    function claimAndConvertFor(address[] memory _path, uint256 _amount, uint256 _minReturn, address payable _beneficiary) public returns (uint256) {\r\n        return convertByPath(_path, _amount, _minReturn, _beneficiary, address(0), 0);\r\n    }\r\n\r\n    /**\r\n      * @dev deprecated, backward compatibility\r\n    */\r\n    function claimAndConvertFor2(\r\n        address[] memory _path,\r\n        uint256 _amount,\r\n        uint256 _minReturn,\r\n        address payable _beneficiary,\r\n        address _affiliateAccount,\r\n        uint256 _affiliateFee\r\n    )\r\n        public\r\n        returns (uint256)\r\n    {\r\n        return convertByPath(_path, _amount, _minReturn, _beneficiary, _affiliateAccount, _affiliateFee);\r\n    }\r\n}\r\n",
  "sourcePath": "/home/lash/src/ext/cic/grassrootseconomics/bancor-contracts/solidity/contracts/BancorNetwork.sol",
  "ast": {
    "absolutePath": "/home/lash/src/ext/cic/grassrootseconomics/bancor-contracts/solidity/contracts/BancorNetwork.sol",
    "exportedSymbols": {
      "BancorNetwork": [
        1976
      ],
      "ILegacyConverter": [
        26
      ]
    },
    "id": 1977,
    "license": "SEE LICENSE IN LICENSE",
    "nodeType": "SourceUnit",
    "nodes": [
      {
        "id": 1,
        "literals": [
          "solidity",
          "0.6",
          ".12"
        ],
        "nodeType": "PragmaDirective",
        "src": "52:23:0"
      },
      {
        "absolutePath": "/home/lash/src/ext/cic/grassrootseconomics/bancor-contracts/solidity/contracts/IConversionPathFinder.sol",
        "file": "./IConversionPathFinder.sol",
        "id": 2,
        "nodeType": "ImportDirective",
        "scope": 1977,
        "sourceUnit": 2547,
        "src": "77:37:0",
        "symbolAliases": [],
        "unitAlias": ""
      },
      {
        "absolutePath": "/home/lash/src/ext/cic/grassrootseconomics/bancor-contracts/solidity/contracts/converter/interfaces/IConverter.sol",
        "file": "./converter/interfaces/IConverter.sol",
        "id": 3,
        "nodeType": "ImportDirective",
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