Method QueryTotalCount

cpp_src/server/httpserver.cc:53–53

	std::optional<size_t> TotalCount() const noexcept override { return totalCount_; }
	std::optional<size_t> QueryTotalCount() const noexcept override { return std::nullopt; }
	unsigned ExternalLimit() const noexcept override { return kDefaultLimit; }
	unsigned ExternalOffset() const noexcept override { return kDefaultOffset; }