code: def set_device(device: _device_t) -> None:
      r"""Sets the current device, in CPU we do nothing.
  
      N.B. This function only exists to facilitate device-agnostic code
      """
      pass
  
imports: from contextlib import AbstractContextManager
  from typing import Any, Optional, Union
  import torch
  from ..None import device
  from .None import amp
label_desc: Use image node_id 7 for calling a global function with example usage: set_device(device) without return types