code: def testInputSignatureForPerReplicaValues(
      self, distribution, enable_get_next_as_optional, drop_remainder
  ):
      distribution.extended.experimental_enable_get_next_as_optional = (
          enable_get_next_as_optional
      )
      ds = dataset_ops.DatasetV2.from_tensor_slices(
          np.ones([9, 12]).astype(np.float32)
      ).batch(4, drop_remainder=drop_remainder)
      ds = distribution.experimental_distribute_dataset(ds)
      _check_type_spec_structure(iter(ds))
      element_spec = ds.element_spec
      iter_element_spec = iter(ds).element_spec
      nest.assert_same_structure(element_spec, iter_element_spec)
      self.assertAllEqual(
          nest.flatten(element_spec), nest.flatten(iter_element_spec)
      )
  
      @def_function.function(input_signature=[element_spec])
      def process_inputs(inputs):
          distribution.run(lambda inputs: inputs, args=(inputs,))
  
      for x in ds:
          process_inputs(x)
  
imports: import os
  from absl.testing import parameterized
  import numpy
  from tensorflow.python import tf2
  from tensorflow.python.data.ops import dataset_ops
  from tensorflow.python.data.ops import readers
  from tensorflow.python.distribute import combinations
  from tensorflow.python.distribute import distribute_lib
  from tensorflow.python.distribute import strategy_combinations
  from tensorflow.python.distribute import test_util
  from tensorflow.python.distribute import tpu_strategy
  from tensorflow.python.distribute import values
  from tensorflow.python.eager import def_function
  from tensorflow.python.eager import test
  from tensorflow.python.framework import composite_tensor
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import sparse_tensor
  from tensorflow.python.framework import tensor_shape
  from tensorflow.python.framework import tensor_spec
  from tensorflow.python.ops import array_ops
  from tensorflow.python.ops import string_ops
  from tensorflow.python.ops.ragged import ragged_tensor
  from tensorflow.python.util import nest
label_desc: Use image node_id 1 for calling the InputTypeSpecTest obj's underlying member method code with example usage: obj.testInputSignatureForPerReplicaValues(distribution, enable_get_next_as_optional, drop_remainder) without return types