code: def test_already_init(self, dist_init_required):
      torch.distributed.init_process_group("nccl")
      model = SimpleModel(4)
      config_dict = {
          "train_micro_batch_size_per_gpu": 1,
          "optimizer": {"type": "Adam", "params": {}},
      }
      engine, *_ = deepspeed.initialize(
          model=model,
          config=config_dict,
          model_parameters=model.parameters(),
          dist_init_required=dist_init_required,
      )
  
imports: import os
  import torch
  import deepspeed.comm
  import deepspeed
  from unit.common import DistributedTest, DistributedFixture, get_master_port
  from unit.simple_model import SimpleModel
  import pytest
label_desc: Use image node_id 1 for calling the TestDistInitWithModel obj's underlying member method code with example usage: obj.test_already_init(dist_init_required) without return types