code: public ParseSetup guessSetup(ByteVec v, byte[] bits, byte sep, int ncols, boolean singleQuotes, int checkHeader, String[] columnNames, byte[] columnTypes, String[][] domains, String[][] naStrings) {
      throw new UnsupportedOperationException("Not implemented. This method is kept only for backwards compatibility. " +
              "Override methods guessInitSetup & guessFinalSetup if you are implementing a new parser.");
    }
docs: Returns parser setup of throws exception if input is not recognized