code: def testBetaProperty(self):
      a = [[1.0, 2, 3]]
      b = [[2.0, 4, 3]]
      dist = sigmoid_beta.SigmoidBeta(a, b, validate_args=True)
      self.assertEqual([1, 3], dist.concentration0.shape)
      self.assertAllClose(b, self.evaluate(dist.concentration0))
  
imports: import numpy
  from scipy import stats
  import tensorflow.compat.v2
  from tensorflow_probability.python.bijectors import invert
  from tensorflow_probability.python.bijectors import sigmoid
  from tensorflow_probability.python.distributions import beta
  from tensorflow_probability.python.distributions import sigmoid_beta
  from tensorflow_probability.python.distributions import transformed_distribution
  from tensorflow_probability.python.distributions.internal import statistical_testing
  from tensorflow_probability.python.internal import assert_util
  from tensorflow_probability.python.internal import test_util
label_desc: Use image node_id 5 for calling the SigmoidBetaTest obj's underlying member method code with example usage: obj.testBetaProperty() without return types