@Override
  public boolean hasCqs(ClientProxyMembershipID clientId) {
    if (_clientCqs != null) {
      CqNameToOp cqs = _clientCqs.get(clientId);
      return cqs != null && !cqs.isEmpty();
    }
    return false;
  }
@return boolean true if cq info is present for the given proxy.
geode-core/src/main/java/org/apache/geode/internal/cache/tier/sockets/ClientUpdateMessageImpl.java