slither/tests/e2e/detectors/test_data/unprotected-upgrade/0.4.25/Reinitializer.sol

import "./Initializable.sol";

contract Reinitializer is Initializable {
    address owner;

    function initialize() external reinitializer(2) {
        require(owner == address(0));
        owner = msg.sender;
    }

    function kill() external {
        require(msg.sender == owner);
        selfdestruct(owner);
    }
}