old_contents: # Created by sarathkaul on 12/11/19
  
  import requests
  
  
  def send_slack_message(message_body: str, slack_url: str) -> None:
      headers = {"Content-Type": "application/json"}
      response = requests.post(slack_url, json={"text": message_body}, headers=headers)
      if response.status_code != 200:
          raise ValueError(
              f"Request to slack returned an error {response.status_code}, "
              f"the response is:\n{response.text}"
          )
  
  
  if __name__ == "main":
      # Set the slack url to the one provided by Slack when you create the webhook at
      # https://my.slack.com/services/new/incoming-webhook/
      send_slack_message("<YOUR MESSAGE BODY>", "<SLACK CHANNEL URL>")
  
new_contents: # Created by sarathkaul on 12/11/19
  
  import requests
  
  
  def send_slack_message(message_body: str, slack_url: str) -> None:
      headers = {"Content-Type": "application/json"}
      response = requests.post(slack_url, json={"text": message_body}, headers=headers)
      if response.status_code != 200:
          raise ValueError(
              f"Request to slack returned an error {response.status_code}, "
              f"the response is:\n{response.text}"
          )
  
  
  if __name__ == "__main__":
      # Set the slack url to the one provided by Slack when you create the webhook at
      # https://my.slack.com/services/new/incoming-webhook/
      send_slack_message("<YOUR MESSAGE BODY>", "<SLACK CHANNEL URL>")
  
subject: Replace main with __main__ (#3518)