Users.update() throws 500, doesn't parse incoming roles list

[mastermargie]

Tried updating a user's roles using Users().update() but kept getting a 500. I think it was because the function doesn't parse out the list of roles in the same way that Users().create() does.

I was able to successfully use the function when I passed json.dumps(roles) to it, where roles was something like:
{'roles': [{'role_name': 'extseclead'}, {'role_name': 'extcreator'}]}

I'd love to see this re-written as Users.update_roles() instead, with a more generic Users.update() kept around to be able to change multiple attributes at once.