public static void updateAll(DataStore dataStore,Iterable<Update> updates){
  updateAll(dataStore,updates.iterator(),ImmutableSet.<String>of());
}

public static void updateAll ( DataStore dataStore , Iterable < Update > updates ) { updateAll ( dataStore , updates . iterator ( ) , ImmutableSet . < String > of ( ) ) ; }
creates , updates or deletes zero or more pieces of content in the data store .
