'Iterate over the users being followed by this user.
:param int number: (optional), number of users to return. Default: -1
returns all available users
:param str etag: (optional), ETag from a previous request to the same
endpoint
:returns: generator of :class:`User <User>`\ s'

def following(self, number=(-1), etag=None):

    url = self._build_url(u'following', base_url=self._api)
    return self._iter(int(number), url, ShortUser, etag=etag)
