code: def test_ranking_streaming(self):
      testing_utils.train_model(
          Opt(
              datatype="train:stream",
              dynamic_batching="full",
              **_RANKER_OPTIONS,
          )
      )
  
imports: from parlai.core.opt import Opt
  from parlai.tasks.integration_tests.agents import NUM_TEST, EXAMPLE_SIZE
  from parlai.utils.conversations import Conversations
  import parlai.utils.testing
  import os
  from typing import Dict, Any
  import unittest
label_desc: Use image node_id 5 for calling the TestDynamicBatching obj's underlying member method code with example usage: obj.test_ranking_streaming() without return types