Django signals **kwargs

So i want to know, when using a model signals. The reciever function has **kwargs. What is the content of **kwargs in this reciever function below:

@reciever(post_save, sender=MyModel)
def func(sender, instance, **kwargs):
# some action.

--
You received this message because you are subscribed to the Google Groups "Django users" group.
To unsubscribe from this group and stop receiving emails from it, send an email to django-users+unsubscribe@googlegroups.com.
To post to this group, send email to django-users@googlegroups.com.
Visit this group at https://groups.google.com/group/django-users.
To view this discussion on the web visit https://groups.google.com/d/msgid/django-users/504e60a9-9ef7-4dc6-a1a8-ab734f250455%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.