code: def test_iap_epilog_and_description():
      parser = IntrospectiveArgumentParser()
      dummy_flow = DummyWorkflow1()
      parser.add_workflow(dummy_flow)
      assert "dummy references" in parser.epilog
      assert "Workflow used to test combined" in parser.description
  
file_path: dipy/dipy/workflows/tests/test_iap.py
imports: import sys
  from os.path import join
  from tempfile import TemporaryDirectory
  import numpy.testing
  from dipy.workflows.base import IntrospectiveArgumentParser, none_or_dtype
  from dipy.workflows.flow_runner import run_flow
  from dipy.workflows.tests.workflow_tests_utils import DummyFlow, DummyCombinedWorkflow, DummyWorkflow1, DummyWorkflowOptionalStr, DummyVariableTypeWorkflow, DummyVariableTypeErrorWorkflow
label_desc: Use image node_id 5 for calling a global function with example usage: test_iap_epilog_and_description() without return types