code: function setRawMode (mode) {
    if (mode) {
      this.do.suppress_go_ahead()
      this.will.suppress_go_ahead()
      this.will.echo()
    } else {
      this.dont.suppress_go_ahead()
      this.wont.suppress_go_ahead()
      this.wont.echo()
    }
  }
docs: The equivalent of "raw mode" via telnet option commands.
  Set this function on a telnet `client` instance.