  Http::FilterFactoryCb createFilter(const std::string&,
                                     Server::Configuration::FactoryContext&) override {
    return [](Http::FilterChainFactoryCallbacks& callbacks) -> void {
      callbacks.addStreamFilter(std::make_shared<::Envoy::BufferContinueStreamFilter>());
    };
  }
  Http::FilterFactoryCb createFilter(const std::string&,
                                     Server::Configuration::FactoryContext&) override {
    return [](Http::FilterChainFactoryCallbacks& callbacks) -> void {
      callbacks.addStreamFilter(std::make_shared<::Envoy::BufferContinueStreamFilter>());
    };
  }