{
    "Function": "addNewCollaterals",
    "File": "contracts/src/CollateralRegistry.sol",
    "Parent Contracts": [
        "contracts/src/Interfaces/ICollateralRegistry.sol",
        "contracts/src/Dependencies/Owned.sol",
        "contracts/src/Interfaces/IOwned.sol"
    ],
    "High-Level Calls": [],
    "Internal Calls": [
        "require(bool,string)",
        "onlyOwner",
        "require(bool,string)",
        "require(bool,string)",
        "require(bool,string)"
    ],
    "Library Calls": [],
    "Low-Level Calls": [],
    "Code": "function addNewCollaterals(\n        uint256[] memory _indexes,\n        IERC20Metadata[] memory _tokens,\n        ITroveManager[] memory _troveManagers\n    ) external override onlyOwner {\n        uint256 numTokens = _indexes.length;\n        require(numTokens > 0 && numTokens == _tokens.length && numTokens == _troveManagers.length, \"Invalid input\");\n\n        require(totalCollaterals + numTokens <= 10, \"Max collaterals\");\n\n        // add new collaterals and trove managers\n        for (uint8 i = 0; i < numTokens; i++) {\n            uint256 index = _indexes[i];\n\n            // can't overwrite an existing branch\n            require(index <= 9, \"Invalid index\");\n            require(address(collateralTokens[index]) == address(0), \"Collateral already initialised\");\n\n            collateralTokens[index] = _tokens[i];\n            troveManagers[index] = _troveManagers[i];\n\n            emit NewCollateralAdded(address(_tokens[i]), address(_troveManagers[i]));\n        }\n\n        // update total Collaterals\n        totalCollaterals += numTokens;\n    }"
}