interface ILocker {
    /**
     * @dev Fails if transaction is not allowed. 
     * Return values can be ignored for AntiBot launches
     */
    function lockOrGetPenalty(address source, address dest)
    external
    returns (bool, uint256);
}
function lockOrGetPenalty(address source, address dest)
external
returns (bool, uint256);

/**
 * @dev Fails if transaction is not allowed. 
 * Return values can be ignored for AntiBot launches
 */