text: #ifndef FEATURE_H
  #define FEATURE_H
  
  #include <string>
  #include <vector>
  
  struct credential;
  struct user;
  
  class feature {
  public:
      explicit feature(std::string username);
  
      void add();
      void edit();
      void remove();
      void search();
      void print();
      void export_to_csv(user const& user_);
  
  private:
      void save() const;
  
      std::string username;
      std::vector<credential> credentials;
  };
  
  #endif // FEATURE_H
  