contract WBIS is
StandardToken,
DetailedERC20("Wrapped BIS", "wBIS", 8),
MintableToken,
BurnableToken,
PausableToken
{
    /**
     * @dev Burns a specific amount of tokens.
     * @param value The amount of token to be burned.
     * @param addr bis address.
     */
    function burn(uint256 value, bytes memory addr) public {
        super.burn(value, addr);
    }

    function renounceOwnership() public onlyOwner {
        revert("Renouncing ownership is blocked");
    }
}
function burn(uint256 value, bytes memory addr) public {
    super.burn(value, addr);
}

/**
 * @dev Burns a specific amount of tokens.
 * @param value The amount of token to be burned.
 * @param addr bis address.
 */