code: def __init__(self, w, g):
      super(SimpleLink, self).__init__()
      with self.init_scope():
          self.param = chainer.Parameter(w)
          self.param.grad = g
  
file_path: chainercv/tests/links_tests/model_tests/ssd_tests/test_gradient_scaling.py
imports: import numpy
  import unittest
  import chainer
  from chainer import optimizers
  from chainer import testing
  from chainer.testing import attr
  from chainercv.links.model.ssd import GradientScaling
label_desc: Use image node_id 1 to create a new SimpleLink object from inherited base classes: chainer with example: obj = SimpleLink(w, g)