Method operator->

src/tiktoken/hash_set8.hpp:157–157

        reference operator*() const { return *kv_; }
        pointer operator->() const { return kv_; }

        bool operator == (const iterator& rhs) const { return kv_ == rhs.kv_; }
        bool operator != (const iterator& rhs) const { return kv_ != rhs.kv_; }