class_docstr: Test caching with BrokenBijector.
code: def broken_bijector_cls(self):
      return BrokenBijector
  
imports: import abc
  import numpy
  from tensorflow.python.framework import constant_op
  from tensorflow.python.framework import test_util
  from tensorflow.python.ops import array_ops
  from tensorflow.python.ops import math_ops
  from tensorflow.python.ops.distributions import bijector
  from tensorflow.python.platform import test
label_desc: Use image node_id 1 for calling the BijectorCachingTest obj's underlying member method code with example usage: obj.broken_bijector_cls() and returns: BrokenBijector