code: def check_call(self):
      xp = self.link.xp
      x = chainer.Variable(
          xp.random.uniform(
              low=-1, high=1, size=(2, self.in_channels, 64, 64)
          ).astype(xp.float32)
      )
      y = self.link(x)
  
      self.assertIsInstance(y, chainer.Variable)
      self.assertIsInstance(y.data, xp.ndarray)
      self.assertEqual(y.shape, (2, self.out_channels, 64, 64))
  
file_path: chainercv/tests/links_tests/model_tests/deeplab_tests/test_aspp.py
imports: import unittest
  import chainer
  from chainer import testing
  from chainer.testing import attr
  from chainercv.links.model.deeplab import SeparableASPP
label_desc: Use image node_id 2 for calling the TestSeparableASPP obj's underlying member method code with example usage: obj.check_call() without return types