code: def iter_authorizations(self, number=-1, etag=None):
          
          url = self._build_url('authorizations')
          return self._iter(int(number), url, Authorization, etag=etag)
docs: Iterate over authorizations for the authenticated user. This will
          return a 404 if you are using a token for authentication.
  
          :param int number: (optional), number of authorizations to return.
              Default: -1 returns all available authorizations
          :param str etag: (optional), ETag from a previous request to the same
              endpoint
          :returns: generator of :class:`Authorization <Authorization>`\ s