code: public static HttpServerInterceptorChain<ByteBuf, ByteBuf, ByteBuf, ByteBuf> startRaw() {
          return new HttpServerInterceptorChain<>(new TransformingInterceptor<ByteBuf, ByteBuf, ByteBuf, ByteBuf>() {
              @Override
              public RequestHandler<ByteBuf, ByteBuf> intercept(RequestHandler<ByteBuf, ByteBuf> handler) {
                  return handler;
              }
          });
      }
docs: Starts a new interceptor chain with {@link ByteBuf} read and written from request and to responses.
  
  @return A new interceptor chain.