code: def setUp(self):
      self.x = np.random.rand(self.batch_size, self.ndim).astype(
          np.float32
      )
      self.distrib = distribution.ContinuousDeterministicDistribution(
          self.x
      )
  
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 1 for calling the TestContinuousDeterministicDistribution obj's underlying member method code with example usage: obj.setUp() without return types