class_docstr: Only used for jacobian calculations.
code: def _inverse_log_det_jacobian(self, y):
      return constant_op.constant(2.0, y.dtype)
  
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 2 for calling the ConstantJacobian obj's underlying member method code with example usage: obj._inverse_log_det_jacobian(y) and returns: constant_op