interface ITempus {
    function maturityTime() external view returns (uint256);

    function yieldBearingToken() external view returns (IERC20Metadata);

    function depositAndFix(
        Any,
        Any,
        uint256,
        bool,
        uint256,
        uint256
    ) external returns (uint256, uint256);
}
        (,uint256 returned) = ITempus(tempusAddr).depositAndFix(Any(x), Any(t), a - fee, true, r, d);
        returned -= illuminateToken.balanceOf(address(this));
