code: public long writeFinishStaticMarker() throws IOException {
          Preconditions.checkState(endStaticInfoOffset < 0, "Wrote final static already information already");
          Pair<Integer, FlatBufferBuilder> encoded = encodeStaticHeader(UIInfoType.START_EVENTS);
          long out = append(encoded.getSecond(), null);
          endStaticInfoOffset = file.length();
          return out;
      }
docs: Write marker for final static data
  @return
  @throws IOException