I need make a save with a model but i need disconnect some receivers of the signals before save it.

I mean,

I have a model:

```
class MyModel(models.Model):
    ...

def pre_save_model(sender, instance, **kwargs):
    ...

pre_save.connect(pre_save_model, sender=MyModel)

```

and in another place in the code i need something like:

```
a = MyModel()
...
disconnect_signals_for_model(a)
a.save()
...
reconnect_signals_for_model(a)

```

Because i need in this case, save the model without execute the function pre\_save\_model.