code: def test_dtype(dtype: torch.dtype) -> None:
      _pre_ln_test_helper(733, 2560, dtype)
  
file_path: deepspeed/tests/unit/inference/v2/modules/test_cuda_pre_ln_module.py
imports: from typing import Optional, Tuple
  import pytest
  import torch
  from deepspeed.accelerator import get_accelerator
  from deepspeed.inference.v2.modules import ConfigBundle
  from deepspeed.inference.v2.modules.configs import DSNormConfig
  from deepspeed.inference.v2.modules.interfaces import DSPreNormRegistry
  from ...v2.inference_test_utils import get_dtypes, allclose
label_desc: Use image node_id 4 for calling a global function with example usage: test_dtype(dtype) without return types