OneOrList# template<class T>class OneOrList# Public Functions inline explicit OneOrList(const size_t size)# inline explicit OneOrList(T &&mainElement)# OneOrList(const OneOrList&) = delete# OneOrList(OneOrList &&other) noexcept = default# OneOrList &operator=(const OneOrList&) = delete# OneOrList &operator=(OneOrList &&other) noexcept = default# inline bool isList() const# inline std::vector<T> &getAsList()# inline const std::vector<T> &getAsList() const# inline std::variant<T, std::vector<T>> &getVariant()# inline const std::variant<T, std::vector<T>> &getVariant() const# inline T &getAsSingle()# inline const T &getAsSingle() const# inline std::vector<T> *tryGetAsList()# inline const std::vector<T> *tryGetAsList() const# inline T *tryGetAsSingle()# inline const T *tryGetAsSingle() const# inline void add(T &&element)# inline T &first()# inline const T &first() const# inline T &last()# inline const T &last() const# inline T &operator[](size_t index)# inline const T &operator[](size_t index) const# inline size_t size() const# inline bool empty() const# inline void reserve(size_t newCapacity)# inline void shrink()# template<class TFunc>inline void forEach(TFunc fcn)# template<class TFunc>inline void forEach(TFunc fcn) const# template<class TFunc>inline auto map(TFunc mapFcn)# template<class TFunc>inline auto map(TFunc mapFcn) const#