contract ERC20Burnable is ERC20Pistachio {

    bool private _burnableActive;

    /**
     * @dev Burns a specific amount of tokens.
     * @param value The amount of token to be burned.
     */
    function burn(uint256 value) public whenBurnableActive {
        _burn(msg.sender, value);
    }

    /**
     * @dev Burns a specific amount of tokens from the target address and decrements allowance
     * @param from address The address which you want to send tokens from
     * @param value uint256 The amount of token to be burned
     */
    function burnFrom(address from, uint256 value) public whenBurnableActive {
        _burnFrom(from, value);
    }

    /**
     * @dev Options to activate or deactivate Burn ability
     */

    function _setBurnableActive(bool _active) internal {
        _burnableActive = _active;
    }

    modifier whenBurnableActive() {
        require(_burnableActive);
        _;
    }

}
/**
 * @title Burnable Token
 * @dev Token that can be irreversibly burned (destroyed).
 */
function _setBurnableActive(bool _active) internal {
        _burnableActive = _active;
    }
/**
 * @dev Options to activate or deactivate Burn ability
 */