78 struct ValueUnion {  struct
79   union DataT {
85   using DataPtr = std::unique_ptr<DataT, decltype(&std::free)>;
88   size_t Size;
89   DataPtr Buff;
92   ValueUnion() : Size(0), Buff(nullptr, &std::free) {}  in ValueUnion()  function
94   explicit ValueUnion(size_t BuffSize)  in ValueUnion()  function
100   explicit operator bool() const { return bool(Buff); }  in operator bool()
102   char* data() const { return Buff->bytes; }  in data()
104   std::string GetAsString() const { return std::string(data()); }  in GetAsString()
106   int64_t GetAsInteger() const {  in GetAsInteger()
114   uint64_t GetAsUnsigned() const {  in GetAsUnsigned()
123   std::array<T, N> GetAsArray() {  in GetAsArray()