code: public static Keyed readAll(AutoBuffer ab) { 
      Futures fs = new Futures();
      Keyed k = ab.getKey(fs);
      fs.blockForPending();       // Settle out all internal Key puts
      return k;
    }
docs: Read a Keyed object, and all nested Keys.  Nested Keys are injected into the K/V store
  overwriting what was there before.