code: def log_local_area(self, local_grads):
      # Each coordinate is a 10th of the volume.
      return -np.log(10.0) * tf.ones_like(local_grads[..., 0])
  
imports: from absl.testing import parameterized
  import numpy
  import tensorflow.compat.v2
  from tensorflow_probability.python.bijectors import exp
  from tensorflow_probability.python.bijectors import reshape
  from tensorflow_probability.python.bijectors import scale
  from tensorflow_probability.python.bijectors import scale_matvec_tril
  from tensorflow_probability.python.bijectors import transform_diagonal
  from tensorflow_probability.python.experimental.tangent_spaces import spaces
  from tensorflow_probability.python.experimental.tangent_spaces import spaces_test_util
  from tensorflow_probability.python.internal import test_util
label_desc: Use image node_id 3 for calling the DiscreteZeroSpaceTest obj's underlying member method code with example usage: obj.log_local_area(local_grads) and returns: unknown