code: def my_gather(self, rank, size, group, sendbuf, recvbuf, root):
      if rank == root:
          for idx in range(size):
              if idx != rank:
                  dist.recv(recvbuf[idx], src=idx, group=group)
              else:
                  recvbuf[rank] = sendbuf
      else:
          dist.send(sendbuf, group=group, dst=root)
  
file_path: H2O/h2o_flexgen/benchmark/third_party/DeepSpeed/deepspeed/runtime/comm/nccl.py
imports: import torch
  from deepspeed import comm
  import cupy
  import numpy
  from deepspeed.runtime.compression.cupy import CupyBackend
label_desc: Use image node_id 3 for calling the NcclBackend obj's underlying member method code with example usage: obj.my_gather(rank, size, group, sendbuf, recvbuf, root) without return types