def current_vm(self):
        """current vm"""
        try:
            _, _, _, _, vm = self._callstack[-1]
            return vm
        except IndexError:
            return None
def current_vm(self):
        """current vm"""
        try:
            _, _, _, _, vm = self._callstack[-1]
            return vm
        except IndexError:
            return None
def current_vm ( self ) : try : _ , _ , _ , _ , vm = self . _callstack [ - 1 ] return vm except IndexError : return None
current vm
current vm