Method KeyByIndex

library/cpp/archive/yarchive.cpp:306–312

    }

    inline TString KeyByIndex(size_t n) const {
        if (n < Count()) {
            return Recs_[n]->Name();
        }

        ythrow yexception() << "incorrect index";
    }

    inline bool Has(const TStringBuf key) const {
        return Dict_.contains(key);