code: public PrefetchResponse prefetch(PrefetchRequest request) {
          InternalRequest internalRequest = this.createRequest(request, HttpMethodName.POST, CACHE, "prefetch");
          this.attachRequestToBody(request, internalRequest);
          return this.invokeHttpClient(internalRequest, PrefetchResponse.class);
      }
docs: Post prefetch request
  
  @param request The request containing all of the URLs to be prefetched.
  @return Result of the prefetch operation returned by the service.