code: def testPdfTwoBatches(self):
      a = [1.0, 2]
      b = [1.0, 2]
      x = [0.0, 0.0]
      dist = sigmoid_beta.SigmoidBeta(a, b, validate_args=True)
      pdf = dist.prob(x)
      self.assertAllClose([1.0 / 4.0, 3.0 / 8.0], self.evaluate(pdf))
      self.assertEqual((2,), pdf.shape)
  
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 7 for calling the SigmoidBetaTest obj's underlying member method code with example usage: obj.testPdfTwoBatches() without return types