class_docstr: Device for ChainerX backend
code: def use(self):
      chainerx.set_default_device(self.device)
  
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 10 for calling the ChainerxDevice obj's underlying member method code with example usage: obj.use() without return types