class_docstr: Device for GPU (CuPy) backend
class_docstr_tok: ["Device","for","GPU","(","CuPy",")","backend"]
code: def from_array(array):
      if isinstance(array, ndarray) and array.device is not None:
          return GpuDevice(array.device)
      return None
  
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 3 for calling the GpuDevice obj's underlying member method code with example usage: obj.from_array(array) and returns: None, GpuDevice