'Unpause the given paused instance.
The paused instance gets unpaused and will use CPU cycles of the
host again. The counter action for \'unpause\' is :func:`pause`.
Depending on the underlying hypervisor technology, the guest has the
same state as before the \'pause\'.
:param nova.objects.instance.Instance instance:
The instance which should be unpaused.
:return: None'

def unpause(self, instance):

    raise NotImplementedError()
