code: public FutureData<PreparedHistoricsQuery> prepare(String hash, DateTime start, DateTime end, String name
              , String... sources) {
          return prepare(hash, MILLISECONDS.toSeconds(start.getMillis()), MILLISECONDS.toSeconds(end.getMillis()),
                  name, -1, sources);
      }
docs: /*
  @param hash  The hash of the CSDL for your historics query.
  Example values: 2459b03a13577579bca76471778a5c3d
  @param start Unix timestamp for the start time.
  Example values: 1325548800
  @param end   nix timestamp for the end time. Must be at least 24 in the past.
  Example values: 1325548800
  @param name  The name you assign to your historics query.
  Example values: Football
  @return the prepared Historics