code: def unblock(self, other_user_id):
          
          params = {'user': self.user_id, 'otherUser': other_user_id}
          response = self.session.delete(self.url, params=params)
          return response.ok
docs: Unblock the given user.
  
          :param str other_user_id: the ID of the user to unblock
          :return: ``True`` if successful
          :rtype: bool