code: def run(self):
      self.streamlit_ui.run()
      if self.streamlit_ui.should_print:
          print(f"{self.counter}: {self.streamlit_ui.message_to_print}")
          self.counter += 1
          self.streamlit_ui.should_print = False
  
file_path: pytorch-lightning/examples/app/template_streamlit_ui/app.py
imports: from lightning.app import LightningApp, LightningFlow
  from lightning.app.frontend import StreamlitFrontend
  from lightning.app.utilities.state import AppState
label_desc: Use image node_id 2 for calling the HelloWorld obj's underlying member method code with example usage: obj.run() without return types