code: def post(self):
      print("Sending the following payload")
      print(json.dumps({"blocks": json.loads(self.payload)}))
  
      text = (
          f"{self.n_failures} failures out of {self.n_tests} tests,"
          if self.n_failures
          else "All tests passed."
      )
  
      self.thread_ts = client.chat_postMessage(
          channel=os.environ["CI_SLACK_CHANNEL_ID_DAILY"],
          blocks=self.payload,
          text=text,
      )
  
imports: import collections
  import json
  import math
  import os
  import re
  import time
  from fnmatch import fnmatch
  from typing import Dict
  import requests
  from slack_sdk import WebClient
label_desc: Use image node_id 9 for calling the Message obj's underlying member method code with example usage: obj.post() without return types