code: def eps(self, nodeids=None):
          
          if nodeids is None: nodeids = self._nodeids
          _eps = self._eps
          return [_eps[nodeid] for nodeid in nodeids]
docs: Return the EPs with the given *nodeid*, or all EPs.
  
          Args:
              nodeids: an iterable of nodeids of EPs to return; if
                  `None`, return all EPs