code: def test_klpq_nsamples_check(self):
      with self.assertRaisesRegexp(
          ValueError, "n_samples should be greater than zero: 0"
      ):
          self._test_normal_normal(
              ed.KLpq, default=True, n_samples=0, n_iter=10
          )
  
file_path: edward/tests/inferences/klpq_test.py
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import edward
  import numpy
  import tensorflow
  from edward.models import Bernoulli, Normal
label_desc: Use image node_id 4 for calling the test_klpq_class obj's underlying member method code with example usage: obj.test_klpq_nsamples_check() without return types