code: def test_DynamicTraitedSpec_tab_completion():
      def extract_func(list_out):
          return list_out[0]
  
      # Define interface
      func_interface = Function(
          input_names=["list_out"],
          output_names=["out_file", "another_file"],
          function=extract_func,
      )
      # Define node
      list_extract = Node(
          Function(
              input_names=["list_out"],
              output_names=["out_file"],
              function=extract_func,
          ),
          name="list_extract",
      )
  
      # Check __all__ for interface inputs
      expected_input = set(list_extract.inputs.editable_traits())
      assert set(func_interface.inputs.__all__) == expected_input
  
      # Check __all__ for node inputs
      assert set(list_extract.inputs.__all__) == expected_input
  
      # Check __all__ for node outputs
      expected_output = set(list_extract.outputs.editable_traits())
      assert set(list_extract.outputs.__all__) == expected_output
  
      # Add trait and retest
      list_extract._interface._output_names.append("added_out_trait")
      expected_output.add("added_out_trait")
      assert set(list_extract.outputs.__all__) == expected_output
  
imports: import os
  import warnings
  import pytest
  from ....utils.filemanip import split_filename
  from ...None import base
  from ...base import traits, Undefined
  from ....interfaces import fsl
  from ...utility.wrappers import Function
  from ....pipeline import Node
  from ..specs import get_filecopy_info
label_desc: Use image node_id 5 for calling a global function with example usage: test_DynamicTraitedSpec_tab_completion() and returns: list_out