code: def test_init_params(self) -> None:
      with tempfile.TemporaryDirectory() as tmpdir, tempfile.TemporaryDirectory() as path:
          lc = LaunchConfig(
              min_nodes=1,
              max_nodes=1,
              nproc_per_node=2,
              run_id=str(uuid.uuid4()),
              rdzv_backend="c10d",
              rdzv_endpoint=os.path.join(tmpdir, "rdzv"),
              rdzv_configs={"store_type": "file"},
              start_method="spawn",
              monitor_interval=1,
              max_restarts=0,
          )
          elastic_launch(
              config=lc, entrypoint=self._run_init_parameters
          )(path)
  
imports: import os
  import tempfile
  import unittest
  import uuid
  import torch
  from torch import distributed
  from torch.distributed._composable import replicate
  from torch.distributed._shard.api import ShardedTensor
  from torch.distributed.checkpoint import FileSystemReader, FileSystemWriter, load_state_dict, save_state_dict
  from torch.distributed.launcher.api import elastic_launch, LaunchConfig
  from torchrec.distributed.shard import shard, shard_modules
  from torchrec.distributed.sharding_plan import column_wise
  from torchrec.distributed.test_utils.test_model import ModelInput, TestSparseNN
  from torchrec.modules.embedding_configs import EmbeddingBagConfig
  from torchrec.test_utils import skip_if_asan
label_desc: Use image node_id 4 for calling the DDPTest obj's underlying member method code with example usage: obj.test_init_params() without return types