docs: def bash_echo_cooler(n):
      """A very basic example of how to destroy n running tasks
      This is a cooler function
      """
      import subprocess
      cmd = (
          'set -o pipefile '
          ' ; kill `pgrep -f "from bash: started relay launcher task"'
          ' | tail -n %s` 2>/dev/null' % n)
      subprocess.Popen(cmd, shell=True, executable='bash').wait()