{
    "Function": "_calculatePreviousEpochCumulativeYield",
    "File": "src/kuma-protocol/KIBToken.sol",
    "Parent Contracts": [
        "lib/openzeppelin-contracts/contracts/proxy/utils/UUPSUpgradeable.sol",
        "lib/openzeppelin-contracts/contracts/proxy/ERC1967/ERC1967Upgrade.sol",
        "lib/openzeppelin-contracts/contracts/interfaces/draft-IERC1822.sol",
        "lib/openzeppelin-contracts-upgradeable/contracts/token/ERC20/extensions/ERC20PermitUpgradeable.sol",
        "lib/openzeppelin-contracts-upgradeable/contracts/utils/cryptography/EIP712Upgradeable.sol",
        "src/kuma-protocol/interfaces/IKIBToken.sol",
        "lib/openzeppelin-contracts-upgradeable/contracts/token/ERC20/extensions/IERC20PermitUpgradeable.sol",
        "lib/openzeppelin-contracts-upgradeable/contracts/token/ERC20/ERC20Upgradeable.sol",
        "lib/openzeppelin-contracts-upgradeable/contracts/token/ERC20/extensions/IERC20MetadataUpgradeable.sol",
        "lib/openzeppelin-contracts-upgradeable/contracts/token/ERC20/IERC20Upgradeable.sol",
        "lib/openzeppelin-contracts-upgradeable/contracts/utils/ContextUpgradeable.sol",
        "lib/openzeppelin-contracts-upgradeable/contracts/proxy/utils/Initializable.sol"
    ],
    "High-Level Calls": [
        "WadRayMath",
        "WadRayMath"
    ],
    "Internal Calls": [
        "_getPreviousEpochTimestamp"
    ],
    "Library Calls": [
        "rayPow",
        "rayMul"
    ],
    "Low-Level Calls": [],
    "Code": "function _calculatePreviousEpochCumulativeYield() private view returns (uint256) {\n        uint256 previousEpochTimestamp = _getPreviousEpochTimestamp();\n        if (previousEpochTimestamp < _lastRefresh) {\n            return _previousEpochCumulativeYield;\n        }\n        uint256 timeElapsedToEpoch = previousEpochTimestamp - _lastRefresh;\n        return _yield.rayPow(timeElapsedToEpoch).rayMul(_cumulativeYield);\n    }"
}