code: def test_get_replica_context(self):
      strategy = mwms.MultiWorkerMirroredStrategy()
  
      tensor_input = constant_op.constant(3)
      d_tensor_input = (
          strategy.experimental_distribute_values_from_function(
              lambda _: tensor_input
          )
      )
  
      @def_function.function
      def replica_fn(inputs):
          replica_context = distribute_lib.get_replica_context()
          self.assertIsInstance(
              replica_context, dtensor_util.DTensorReplicaContext
          )
          return inputs * replica_context.num_replicas_in_sync
  
      # Default replica context
      self.assertIsNotNone(distribute_lib.get_replica_context())
      with strategy.scope():
          self.assertIsNone(distribute_lib.get_replica_context())
  
          result = strategy.run(replica_fn, args=(d_tensor_input,))
  
      self.assertLen(result.values, self.num_local_devices)
      for i in range(self.num_local_devices):
          self.assertAllClose(
              result.values[i],
              constant_op.constant([3 * strategy.num_replicas_in_sync]),
          )
  
imports: import json
  import os
  from absl import flags
  from absl.testing import parameterized
  import numpy
  from tensorflow.dtensor.python import api
  from tensorflow.dtensor.python import d_variable
  from tensorflow.dtensor.python import layout
  from tensorflow.dtensor.python.tests import multi_client_test_util
  from tensorflow.dtensor.python.tests import test_backend_util
  from tensorflow.dtensor.python.tests import test_util
  from tensorflow.python.data.ops import dataset_ops
  from tensorflow.python.distribute import distribute_lib
  from tensorflow.python.distribute import reduce_util
  from tensorflow.python.distribute.cluster_resolver import tfconfig_cluster_resolver
  from tensorflow.python.distribute.experimental import dtensor_util
  from tensorflow.python.distribute.experimental import multi_worker_mirrored_strategy
  from tensorflow.python.eager import def_function
  from tensorflow.python.framework import config
  from tensorflow.python.framework import constant_op
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import tensor_spec
  from tensorflow.python.ops import array_ops
  from tensorflow.python.ops import math_ops
  from tensorflow.python.ops import stateless_random_ops
  from tensorflow.python.ops import variables
  from tensorflow.python.platform import test
label_desc: Use image node_id 17 for calling the MultiWorkerMirroredStrategyTest obj's underlying member method code with example usage: obj.test_get_replica_context() and returns: unknown