code: func (r *GoHeader) GetCookie(key string) (value ServerCookie, err error) {
  	if !r.isResponse {
  		var cookie *http.Cookie
  		if cookie, err = r.Source.(*GoRequest).Original.Cookie(key); err == nil {
  			value = GoCookie(*cookie)
  
  		}
  
  	}
  	return
  }
docs: // Gets the cookie