code: def testGammaGammaShape(self):
      gg = gamma_gamma.GammaGamma(
          concentration=[[2.0], [4.0]],
          mixing_concentration=[1.0, 2.0, 3.0],
          mixing_rate=0.5,
          validate_args=True,
      )
  
      self.assertAllEqual(
          self.evaluate(gg.batch_shape_tensor()), [2, 3]
      )
      self.assertEqual(gg.batch_shape, tf.TensorShape([2, 3]))
      self.assertAllEqual(self.evaluate(gg.event_shape_tensor()), [])
      self.assertEqual(gg.event_shape, tf.TensorShape([]))
  
file_path: probability/tensorflow_probability/python/distributions/gamma_gamma_test.py
imports: import numpy
  import tensorflow.compat.v2
  from tensorflow_probability.python.distributions import gamma_gamma
  from tensorflow_probability.python.internal import test_util
label_desc: Use image node_id 1 for calling the GammaGammaTest obj's underlying member method code with example usage: obj.testGammaGammaShape() without return types