code: def _unnormalized_log_prob(self, value):
      return 1.0 + value - tf.math.exp(value)
  
file_path: probability/spinoffs/inference_gym/inference_gym/targets/model_test.py
imports: import numpy
  import tensorflow.compat.v2
  import tensorflow_probability
  from tensorflow_probability.python.internal import test_util
  from inference_gym import targets
  from inference_gym.internal import test_util
  from tensorflow.python.util import nest
label_desc: Use image node_id 2 for calling the TestModel obj's underlying member method code with example usage: obj._unnormalized_log_prob(value) and returns: unknown