How does Django’s nested Meta class work?

I am using Django which allows people to add extra parameters to a class by using class Meta.

class FooModel(models.Model):
    ...
    class Meta:
        ...

The only thing I found in Python’s documentation was:

class FooMetaClass(type):
    ...

class FooClass:
    __metaclass__ = FooMetaClass

However, I don’t think this is the same thing.