code: def test_cntk_203_reinforcement_learning_basics_tasks_are_solved(nb):
      if os.getenv("OS") == "Windows_NT" and sys.version_info[0] == 2:
          pytest.skip(
              "tests with Python 2.7 on Windows are not stable in the CI environment. "
          )
      testCells = [
          cell
          for cell in nb.cells
          if re.search(
              "Task solved in[ :]", get_output_stream_from_cell(cell)
          )
      ]
      assert len(testCells) == 2
  
imports: import os
  import re
  import sys
  import pytest
  from nb_helper import get_output_stream_from_cell
label_desc: Use image node_id 2 for calling a global function with example usage: test_cntk_203_reinforcement_learning_basics_tasks_are_solved(nb) without return types