code: def allgather(self, inputs, local_tensor, **kwargs):
      assert (
          len(inputs[0]) == len(local_tensor) == 1
      ), f"{len(inputs[0])} != {len(local_tensor)} != 1, and the FakeGroup is supposed to join on simple tensors"
      for input_ in inputs:
          input_[0].data = local_tensor[0].data
      return FakeBarrier()
  
file_path: text-generation-inference/server/text_generation_server/utils/dist.py
imports: import os
  import torch
  from datetime import timedelta
  from loguru import logger
label_desc: Use image node_id 3 for calling the FakeGroup obj's underlying member method code with example usage: obj.allgather(inputs, local_tensor) and returns: FakeBarrier