'Call the list_courses api endpoint to get information about
`specified_user` on behalf of `requesting_user`.'

def _make_api_call(self, requesting_user, specified_user, org=None, filter_=None):

    request = Request(self.request_factory.get('/'))
    request.user = requesting_user
    with check_mongo_calls(0):
        return list_courses(request, specified_user.username, org=org, filter_=filter_)
