class_docstr: Device for ChainerX backend
code: def name(self):
      return 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 4 for calling the ChainerxDevice obj's underlying member method code with example usage: obj.name() and returns: self