code: def test_sample_cpu(self):
      self.check_sample(False)
  
file_path: chainer/tests/chainer_tests/distributions_tests/test_pareto.py
imports: import numpy
  from chainer import cuda
  from chainer import distributions
  from chainer import testing
label_desc: Use image node_id 4 for calling the TestPareto obj's underlying member method code with example usage: obj.test_sample_cpu() without return types