subprojects/parseq-restli-client/src/main/java/com/linkedin/restli/client/GetRequestGroup.java
private static Tuple3<Set<Object>, Set<PathSpec>, Boolean> reduceContainsBatch(Tuple3<Set<Object>, Set<PathSpec>, Boolean> state,
      Request<?> request) {
    if (request instanceof GetRequest) {
      return state;
    } else if (request instanceof BatchRequest) {
      return Tuples.tuple(state._1(), state._2(), true);
    } else {
      throw unsupportedGetRequestType(request);
    }
  }
private static Tuple3<Set<Object>, Set<PathSpec>, Boolean> reduceContainsBatch(Tuple3<Set<Object>, Set<PathSpec>, Boolean> state,
      Request<?> request) {
    if (request instanceof GetRequest) {
      return state;
    } else if (request instanceof BatchRequest) {
      return Tuples.tuple(state._1(), state._2(), true);
    } else {
      throw unsupportedGetRequestType(request);
    }
  }
Tuple3: (keys, fields, contains-batch-get)