code: function run(how) {
    if (!how || (how != "ping" && how != "pong")) {
      console.log("must enter `ping` or `pong` as parameter")
      process.exit(1)
    }
  
    ping = how
    pong = (ping == "ping") ? "pong" : "ping"
    ragents.createSession(options, sessionCreated)
  }
docs: ------------------------------------------------------------------------------