code: public static base_responses add(nitro_service client, clusterinstance resources[]) throws Exception {
  		base_responses result = null;
  		if (resources != null && resources.length > 0) {
  			clusterinstance addresources[] = new clusterinstance[resources.length];
  			for (int i=0;i<resources.length;i++){
  				addresources[i] = new clusterinstance();
  				addresources[i].clid = resources[i].clid;
  				addresources[i].deadinterval = resources[i].deadinterval;
  				addresources[i].hellointerval = resources[i].hellointerval;
  				addresources[i].preemption = resources[i].preemption;
  			}
  			result = add_bulk_request(client, addresources);
  		}
  		return result;
  	}
docs: Use this API to add clusterinstance resources.