code: public static <K2, V2> Initializer<K2, V2> getInitializer(String mapId, int numBuckets,
        SimpleSerializer serializer) {
      return new Initializer<>(mapId, numBuckets, serializer);
    }
docs: A {@link CollisionFreeMap} stores data in its own data format in the Fluo table. When
  initializing a Fluo table with something like Map Reduce or Spark, data will need to be written
  in this format. That's the purpose of this method, it provide a simple class that can do this
  conversion.