code: def __init__(self, param):
      self.dtype = None
      self.__dict__.update(param)
  
imports: import chainer
  import chainer.testing
  import chainer.testing.attr
  import numpy
  import pytest
  import chainermn
  import chainermn.functions
label_desc: Use image node_id 1 to create a new Param object from inherited base classes: object with example: obj = Param(param)