code: def log_once(key: str) -> bool:
      """Returns True if this is the "first" call for a given key.
  
      Example:
          if log_once("some_key"):
              logger.info("Some verbose logging statement") # noqa
      """
  
      if key not in _logged:
          _logged.add(key)
          return True
      return False
  
label_desc: Use image node_id 1 for calling a global function with example usage: log_once(key) and returns: False, True