code: def setUp(self):
      self.check_forward_options.update({"atol": 1e-4, "rtol": 1e-3})
      self.check_backward_options.update({"atol": 1e-3, "rtol": 1e-2})
      self.check_double_backward_options.update(
          {"atol": 1e-3, "rtol": 1e-2}
      )
      if self.dtype == numpy.float16:
          self.check_forward_options.update(
              {"atol": 1e-2, "rtol": 1e-2}
          )
          self.check_backward_options.update(
              {"atol": 1e-2, "rtol": 1e-2}
          )
          self.check_double_backward_options.update(
              {"atol": 1e-2, "rtol": 1e-2}
          )
  
file_path: chainer/tests/chainer_tests/functions_tests/normalization_tests/test_group_normalization.py
imports: import numpy
  import six
  from chainer import functions
  import chainer.functions.normalization.group_normalization
  from chainer import testing
label_desc: Use image node_id 1 for calling the TestGroupNormalization obj's underlying member method code with example usage: obj.setUp() without return types