docs: def list_crawler_workflows(tail):
      """Show info about the existing crawler workflows."""
      query = (
          models.CrawlerWorkflowObject.query
          .order_by(models.CrawlerWorkflowObject.object_id.desc())
      )
      if tail != 0:
          query = query.limit(tail)
  
      workflows = query.yield_per(10).all()
      _show_table(results=workflows)