code: def exported_lightning_components():
      return [MyCustomLightningWork, MyCustomLightningFlow]
  
file_path: pytorch-lightning/tests/tests_app/components/sample_package_repo/external_lightning_component_package/__init__.py
imports: from lightning.app import LightningFlow, LightningWork
label_desc: Use image node_id 1 for calling a global function with example usage: exported_lightning_components() and returns: list