protected boolean hasInterest() {
    return regions.size() > 0;
  }
Unregisters interest in the input region name and list of keys

@param regionName The fully-qualified name of the region in which to unregister interest
@param keysOfInterest The list of keys in which to unregister interest
geode-core/src/main/java/org/apache/geode/internal/cache/tier/sockets/ClientInterestList.java