code: def log_volume(self):
      return _hypersphere_log_volume(self.dims)
  
imports: from absl.testing import parameterized
  import numpy
  import scipy.special
  import tensorflow.compat.v2
  from tensorflow_probability.python.bijectors import exp
  from tensorflow_probability.python.bijectors import scale
  from tensorflow_probability.python.bijectors import scale_matvec_tril
  from tensorflow_probability.python.experimental.tangent_spaces import spaces_test_util
  from tensorflow_probability.python.experimental.tangent_spaces import spherical
  from tensorflow_probability.python.internal import test_util
label_desc: Use image node_id 5 for calling the _SpheresTest obj's underlying member method code with example usage: obj.log_volume() and returns: _hypersphere_log_volume