code: def setUp(self):
      self.original = chainer.disable_experimental_feature_warning
      chainer.disable_experimental_feature_warning = False
  
imports: import unittest
  import warnings
  import chainer
  from chainer import testing
  from chainer import utils
label_desc: Use image node_id 1 for calling the TestExperimental obj's underlying member method code with example usage: obj.setUp() without return types