code: def get_device(*args):
      """Gets the device from a device object, an ID integer or an array object.
  
      .. note::
  
          This API is deprecated since v3.0.0. Please use
          :func:`~chainer.backends.cuda.get_device_from_id`
          or :func:`~chainer.backends.cuda.get_device_from_array` instead.
  
      This is a convenient utility to select a correct device if the type of
      ``arg`` is unknown (i.e., one can use this function on arrays that may be
      on CPU or GPU). The returned device object supports the context management
      protocol of Python for the *with* statement.
  
      Args:
          args: Values to specify a GPU device. The first device object, integer
              or :class:`cupy.ndarray` object is used to select a device.
              If it is a device object, it is returned. If it is an integer,
              the corresponding device is returned. If it is a CuPy array,
              the device on which this array reside is returned. If any
              arguments are neither integers nor CuPy arrays, a dummy device
              object representing CPU is returned.
  
      Returns:
          Device object specified by given ``args``.
  
      .. seealso::
         See :class:`cupy.cuda.Device` for the device selection not by arrays.
  
      """
      warnings.warn(
          "get_device is deprecated. Please use get_device_from_id or"
          " get_device_from_array instead.",
          DeprecationWarning,
      )
      return _get_cuda_device(*args)
  
imports: import binascii
  import functools
  import itertools
  import os
  import threading
  import time
  import typing
  import warnings
  import numpy
  import six
  import chainer
  from chainer import _backend
  from chainer.backends import _cpu
  from chainer.backends import intel64
  from chainer.configuration import config
  from chainer import types
  import chainerx
label_desc: Use image node_id 4 for calling a global function with example usage: get_device() and returns: _get_cuda_device