docstr: Whether each node has the same number of in-peers as out-peers
docstr_tok: ["Whether","each","node","has","the","same","number","of","in-peers","as","out-peers"]
code: def is_regular_graph(self) -> bool:
      """Whether each node has the same number of in-peers as out-peers"""
      raise NotImplementedError
  
imports: from abc import ABC, abstractmethod
  from math import log
  from typing import List, Optional, Tuple
  import torch
  import torch.distributed
label_desc: Use image node_id 6 for calling the GraphManager obj's underlying member method code with example usage: obj.is_regular_graph() without return types