code: def check_notebook(inlets, execution_date):
      """
      Verify the message in the notebook
      """
      notebook = sb.read_notebook(inlets[0].url)
      message = notebook.scraps["message"]
      print(f"Message in notebook {message} for {execution_date}")
  
      if message.data != f"Ran from Airflow at {execution_date}!":
          return False
  
      return True
  
file_path: airflow/tests/system/providers/papermill/example_papermill_verify.py
imports: from __future__ import annotations
  import os
  from datetime import datetime, timedelta
  import scrapbook
  from airflow import DAG
  from airflow.decorators import task
  from airflow.lineage import AUTO
  from airflow.providers.papermill.operators.papermill import PapermillOperator
  from tests.system.utils import get_test_run
label_desc: Use image node_id 1 for calling a global function with example usage: check_notebook(inlets, execution_date) and returns: True, False