class_docstr: Device for ChainerX backend
code: def __repr__(self):
      return "<{} {}>".format(self.__class__.__name__, self.device.name)
  
imports: import numpy
  import chainer
  from chainer import _backend
  from chainer.backends import _cpu
  from chainer.backends import cuda
  from chainer.backends import intel64
  import chainerx
label_desc: Use image node_id 7 for calling the ChainerxDevice obj's underlying member method code with example usage: obj.__repr__() and returns: str