code: def notify(message):
      headers = {"Content-Type": "application/json"}
      data = json.dumps({"text": message})
      if WEBHOOK is None:
          print(message)
      else:
          requests.post(WEBHOOK, data=data, headers=headers)
  
imports: import requests
  import json
  import os
label_desc: Use image node_id 1 for calling a global function with example usage: notify(message) without return types