#ifndef _TOKEN_H
 #define _TOKEN_H

 #include <string>
 #include <memory>
 
 #include "user.h"
 

 
 class user_token_supplier {

     public:

        virtual std::string token(const user_p user) = 0;
 };
 typedef std::shared_ptr<user_token_supplier> user_token_supplier_p;

 
 
 #endif