code: public static base_response update(nitro_service client, cacheparameter resource) throws Exception {
  		cacheparameter updateresource = new cacheparameter();
  		updateresource.memlimit = resource.memlimit;
  		updateresource.via = resource.via;
  		updateresource.verifyusing = resource.verifyusing;
  		updateresource.maxpostlen = resource.maxpostlen;
  		updateresource.prefetchmaxpending = resource.prefetchmaxpending;
  		updateresource.enablebypass = resource.enablebypass;
  		updateresource.undefaction = resource.undefaction;
  		updateresource.enablediskcache = resource.enablediskcache;
  		return updateresource.update_resource(client);
  	}
docs: Use this API to update cacheparameter.