code: func (cse *SessionCookieEngine) Decode(c *Controller) {
  	// Decode the session from a cookie.
  	c.Session = map[string]interface{}{}
  	sessionMap := c.Session
  	if cookie, err := c.Request.Cookie(CookiePrefix + session.SessionCookieSuffix); err != nil {
  		return
  	} else {
  		cse.DecodeCookie(cookie, sessionMap)
  		c.Session = sessionMap
  	}
  }
docs: // Decode the session information from the cookie retrieved from the controller request