text: Title: How to get the time stamp of my block post to delete the message once the button is clicked.
  Body: python 3.11
  slack bolt 1.16.2
  
  This is probably a simple question which is why I could not find the answer but How would I use slack bolt sdk to delete an "approval" block that my bot posts. I am able to post the block and the result does return the time stamp. But how do I then pass that specific time stamp into my listener function?
  
  
  ````
  def yes_or_no(ack, client):
      """
      Simple function to respond if a user performs an action. Using "app mention" for testing
      """
      ack()
      result = client.chat_postMessage(
          blocks=slackpayload2,
          channel="channel_id",
          text="Please approve the attached information"
      )
      return result
  
  
  result = app.event("app_mention")(yes_or_no)
  
  
  
  @app.action("Approved")
  def handle_approval(ack, body, logger, client, context):
      ack()
      logger.info(body)
      client.chat_postMessage(
          channel="channel_id",
          text="Approved!"
      )
      client.chat_delete(
          channel=context["channel_id"],
          ts=???,
      )
  ````
  
  
  I looked into being able to pass an additional argument into my handle_approval() function but it seems like that would be overcomplicating the issue. I am probably just missing something but could not find any documentation on how to accomplish this.
  (Note if I manually print(result['ts'] and use that as my timestamp in chat_delete this does work. I just need to figure out how to programmatically get it in there.
  