Lime\Session::init PHP Method

    public function init($sessionname = null)
    {
        if ($this->initialized) {
            return;
        }
        if (!strlen(session_id())) {
            $this->name = $sessionname ? $sessionname : $this->app["session.name"];
            session_name($this->name);
            session_start();
        } else {
            $this->name = session_name();
        }
        $this->initialized = true;
    }