docs: public static base_responses expire(nitro_service client, cachecontentgroup resources[]) throws Exception {
  		base_responses result = null;
  		if (resources != null && resources.length > 0) {
  			cachecontentgroup expireresources[] = new cachecontentgroup[resources.length];
  			for (int i=0;i<resources.length;i++){
  				expireresources[i] = new cachecontentgroup();
  				expireresources[i].name = resources[i].name;
  			}
  			result = perform_operation_bulk_request(client, expireresources,"expire");
  		}
  		return result;
  	}