code: def peers_per_itr(self, v: int) -> None:
      self._peers_per_itr = v
      # set group-indices attr. --- point to out-peers in phone-book
      self._group_indices = list(range(v))
  
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 3 for calling the GraphManager obj's underlying member method code with example usage: obj.peers_per_itr(v) without return types