code: def pool_undelete(self, pool_id):
          
          return self._get('pools/{0}/undelete.json'.format(pool_id),
                           method='POST', auth=True)
docs: Undelete a specific poool (Requires login) (UNTESTED) (Moderator+).
  
          Parameters:
              pool_id (int): Where pool_id is the pool id.