code: def setUp(self):
      self.mean = numpy.random.uniform(-1, 1, (3,)).astype(
          numpy.float32
      )
      self.ln_var = numpy.random.uniform(-1, 1, (3,)).astype(
          numpy.float32
      )
  
imports: import unittest
  import numpy
  import chainer
  from chainer.backends import cuda
  from chainer import functions
  from chainer import testing
  from chainer.testing import attr
  from chainer.testing import condition
label_desc: Use image node_id 1 for calling the TestGaussianKLDivergenceInvalidReductionOption obj's underlying member method code with example usage: obj.setUp() without return types