code: def test_expectations_1d(self, dtype):
      self.verify_expectations(1, dtype)
  
imports: from absl.testing import parameterized
  import numpy
  import tensorflow.compat.v1
  import tensorflow.compat.v2
  from tensorflow_probability.python.distributions import lkj
  from tensorflow_probability.python.distributions.internal import statistical_testing
  from tensorflow_probability.python.internal import assert_util
  from tensorflow_probability.python.internal import dtype_util
  from tensorflow_probability.python.internal import test_util
label_desc: Use image node_id 2 for calling the TrilSphericalUniformTest obj's underlying member method code with example usage: obj.test_expectations_1d(dtype) without return types