can't call aa_change_hatv() from python

It seems to be impossible to call aa_change_hatv from python using the swig bindings - whatever array type I try, I get a TypeError.

# python3
Python 3.6.2 (default, Aug 03 2017, 16:34:42) [GCC] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> from LibAppArmor import aa_change_hat, aa_change_hatv

>>> hats = ['foo', 'bar']
>>> aa_change_hatv( hats, 1234)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: in method 'aa_change_hatv', argument 1 of type 'char const *[]'

>>> hats = ('foo', 'bar')
>>> aa_change_hatv( hats, 1234)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: in method 'aa_change_hatv', argument 1 of type 'char const *[]'

>>> hats = {'foo', 'bar'}
>>> aa_change_hatv( hats, 1234)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: in method 'aa_change_hatv', argument 1 of type 'char const *[]'

Am I doing something wrong, or are the bindings broken?