amazon cloudsearch cannot add document with boto?

I am trying to use the latest boto 0.36 with cloudsearch, I made connection using connect_cloudsearch2:

user =    {
        'id': 4,
        'username': 'daniella',
        'last_activity': 1334253279,
        'follower_count': 7,
        'location': 'USA',
        'snippet': 'Just like Dan, I like to watch a good sunset, but heights scare me.',
    }
doc_service = domain.get_document_service()
for user in users:
   doc_service.add(user['id'], user['last_activity'], user)
   #doc_service.add(user['id'], user) #this does not work either
complete = doc_service.commit()

Error I get is on the line with the doc_service.add (it comes straight from the docs):

TypeError: add() takes exactly 3 arguments (4 given)

If the commented "doc_service.add" line is used instead of the line above it, the error is:

boto.cloudsearch2.document.CommitMismatchError: Incorrect number of adds returned. Commit: 1 Response: 0

No documents get added/committed in either case. The cloud seems very difficult to use... anyone have any ideas?