code: def test_true_for_namedtuple_without_fields(self):
      NoFields = collections.namedtuple(
          "NoFields", []
      )  # pylint: disable=invalid-name
      no_fields = NoFields()
      self.assertTrue(util.is_namedtuple_like(no_fields))
  
imports: import collections
  import warnings
  from absl.testing import parameterized
  import numpy
  import tensorflow.compat.v2
  from tensorflow_probability.python.distributions import lognormal
  from tensorflow_probability.python.distributions import mvn_tril
  from tensorflow_probability.python.internal import test_util
  from tensorflow_probability.python.mcmc.internal import util
label_desc: Use image node_id 1 for calling the IsNamedTupleLikeTest obj's underlying member method code with example usage: obj.test_true_for_namedtuple_without_fields() without return types