  void log(const Http::RequestHeaderMap*, const Http::ResponseHeaderMap*,
           const Http::ResponseTrailerMap*, const StreamInfo::StreamInfo& info) override {
    func_(info);
  }
  void log(const Http::RequestHeaderMap*, const Http::ResponseHeaderMap*,
           const Http::ResponseTrailerMap*, const StreamInfo::StreamInfo& info) override {
    func_(info);
  }