void save_template (std::shared_ptr<const Film> film, std::string name) const;
bool existing_template (std::string name) const;
std::list<std::string> templates () const;
void save_template (std::shared_ptr<const Film> film, std::string name) const;
bool existing_template (std::string name) const;
std::list<std::string> templates () const;