code: def test_distributed_eval_stream_mode(self):
      valid, test = self._distributed_train_model(
          task="integration_tests",
          num_epochs=0.01,
          datatype="train:stream",
      )
  
      # Tests that StreamDialogData.get() is doing the right thing
      # Ensure no duplication of examples among workers
      # It would be 200 if each worker did all the examples
      self.assertEqual(valid["exs"].value(), inttests.NUM_TEST)
      self.assertEqual(test["exs"].value(), inttests.NUM_TEST)
  
imports: import os
  import unittest
  import parlai.utils.testing
  import parlai.scripts.build_dict
  import parlai.scripts.multiprocessing_train
  import parlai.tasks.integration_tests.agents
label_desc: Use image node_id 4 for calling the TestDistributed obj's underlying member method code with example usage: obj.test_distributed_eval_stream_mode() without return types