'Remove a model or a list of models from the list of models
whose comments will be moderated.
Raise ``NotModerated`` if any of the models are not currently
registered for moderation.'

def unregister(self, model_or_iterable):

    if isinstance(model_or_iterable, ModelBase):
        model_or_iterable = [model_or_iterable]
    for model in model_or_iterable:
        if (model not in self._registry):
            raise NotModerated(("The    model    '%s'    is    not    currently    being    moderated" % model._meta.model_name))
        del self._registry[model]
