class_docstr: Test the abstract base class behaviors.
class_docstr_tok: ["Test","the","abstract","base","class","behaviors","."]
code: def testDynamicShapesAndValuesOfProduct(self):
      params_2_dynamic = tf1.placeholder_with_default(
          np.float32([1.0, 2.0]), shape=None
      )
      params_21_dynamic = tf1.placeholder_with_default(
          np.float32([[1.0], [2.0]]), shape=None
      )
      k2 = TestKernel(params_2_dynamic)
      k21 = TestKernel(params_21_dynamic)
  
      x, y, _ = self.createKernelInputs()
      product_kernel = k2 * k21
      self.assertEqual(tf.float32, product_kernel.dtype)
      self.assertAllEqual(
          [2, 2], self.evaluate(product_kernel.batch_shape_tensor())
      )
      self.assertAllEqual(
          functools.reduce(
              operator.mul,
              [
                  self.evaluate(k.matrix(x, y))
                  for k in product_kernel.kernels
              ],
          ),
          self.evaluate(product_kernel.matrix(x, y)),
      )
  
      self.assertAllEqual(
          [2, 1],
          self.evaluate(product_kernel[:, :1].batch_shape_tensor()),
      )
      self.assertAllEqual(
          functools.reduce(
              operator.mul,
              [
                  self.evaluate(k.matrix(x, y))
                  for k in product_kernel[:, :1].kernels
              ],
          ),
          self.evaluate(product_kernel[:, :1].matrix(x, y)),
      )
  
imports: import functools
  import operator
  from absl.testing import parameterized
  import numpy
  import tensorflow.compat.v1
  import tensorflow.compat.v2
  from tensorflow_probability.python.internal import parameter_properties
  from tensorflow_probability.python.internal import test_util
  from tensorflow_probability.python.math.psd_kernels import positive_semidefinite_kernel
  from tensorflow_probability.python.math.psd_kernels.internal import test_util
  from tensorflow_probability.python.math.psd_kernels.internal import util
label_desc: Use image node_id 20 for calling the PositiveSemidefiniteKernelTest obj's underlying member method code with example usage: obj.testDynamicShapesAndValuesOfProduct() without return types