docstr: Incerement group indices to point to the next out-peer
docstr_tok: ["Incerement","group","indices","to","point","to","the","next","out-peer"]
code: def _rotate_group_indices(self) -> None:
      """Incerement group indices to point to the next out-peer"""
      increment = self.peers_per_itr
      for i, group_index in enumerate(self._group_indices):
          self._group_indices[i] = int(
              (group_index + increment)
              % len(self.phone_book[self.rank])
          )
  
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 12 for calling the GraphManager obj's underlying member method code with example usage: obj._rotate_group_indices() without return types