code: def test_sample(self):
      sample = self.distrib.sample()
      self.assertTrue(isinstance(sample, chainer.Variable))
      self.assertEqual(sample.shape, (self.batch_size, self.ndim))
      np.testing.assert_allclose(sample.array, self.x, rtol=1e-5)
  
imports: import unittest
  import chainer
  from chainer import testing
  from chainer.testing import condition
  import numpy
  import scipy.stats
  from chainerrl import distribution
label_desc: Use image node_id 2 for calling the TestContinuousDeterministicDistribution obj's underlying member method code with example usage: obj.test_sample() without return types