code: def setUp(self):
      class Model(chainer.Chain):
          def __init__(self, ops, args):
              super(Model, self).__init__()
              self.ops = ops
              self.args = args
  
          def __call__(self, x):
              return self.ops(x, **self.args)
  
      ops = getattr(F, self.name)
      args = {}
      if hasattr(self, "args"):
          args = self.args
      self.model = Model(ops, args)
      self.x = input_generator.increasing(2, 5, 3)
  
file_path: chainer/tests/onnx_chainer_tests/functions_tests/test_activations.py
imports: import chainer
  import chainer.functions
  import chainer.links
  from chainer import testing
  from onnx_chainer.testing import input_generator
  from onnx_chainer_tests.helper import ONNXModelTest
label_desc: Use image node_id 1 for calling the TestActivations obj's underlying member method code with example usage: obj.setUp() and returns: self