code: def comments(accountable):
      
      comments = accountable.issue_comments()
      headers = sorted(['author_name', 'body', 'updated'])
  
      if comments:
          rows = [[v for k, v in sorted(c.items()) if k in headers]
                  for c in comments]
          rows.insert(0, headers)
          print_table(SingleTable(rows))
      else:
          click.secho('No comments found for {}'.format(
              accountable.issue_key
          ), fg='red')
docs: Lists all comments for a given issue key.