class_docstr: Fake TransitionKernel for testing MetropolisHastings.
class_docstr_tok: ["Fake","TransitionKernel","for","testing","MetropolisHastings","."]
code: def call_count(self):
      return self._call_count
  
imports: import collections
  import warnings
  import numpy
  import tensorflow.compat.v2
  from tensorflow_probability.python.internal import test_util
  from tensorflow_probability.python.mcmc import kernel
  from tensorflow_probability.python.mcmc import metropolis_hastings
  from tensorflow_probability.python.mcmc.internal.util import is_list_like
label_desc: Use image node_id 2 for calling the FakeTransitionKernel obj's underlying member method code with example usage: obj.call_count() and returns: self