code: public static CpcSketch heapify(final Memory mem, final long seed) {
      final CompressedState state = CompressedState.importFromMemory(mem);
      return uncompress(state, seed);
    }
docs: Return the given Memory as a CpcSketch on the Java heap.
  @param mem the given Memory
  @param seed the seed used to create the original sketch from which the Memory was derived.
  @return the given Memory as a CpcSketch on the Java heap.