@magic.line_magic
    def eject(self, line=''):
        self.sc('0 1b 0 0 0 2')
Rolls back the most recent savepoint (if one exists). Does nothing if
dataset/ETHPy150Open scanlime/coastermelt/backdoor/shell_magics.py/ShellMagics.eject--crossover with--dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.5/django/db/transaction.py/savepoint_rollback