code: def main(argv):
      if len(argv) > 1:
          raise app.UsageError("Too many command-line arguments.")
      program = make_program()
      controller = lp.launch(program)
      if not controller:
          logging.info(
              "Waiting for program termination is not supported."
          )
          return
      controller.wait()
      logging.info("Program finished.")
  
file_path: launchpad/launchpad/examples/program_wait/launch.py
imports: import threading
  import time
  from absl import app
  from absl import logging
  import launchpad
label_desc: Use image node_id 7 for calling a global function with example usage: main(argv) without return types