docs: public Object execute(final Object value, final CsvContext context) {
  		validateInputNotNull(value, context);
  		if (!(value instanceof Interval)) {
  			throw new SuperCsvCellProcessorException(Interval.class, value,
  					context, this);
  		}
  		final Interval interval = (Interval) value;
  		final String result = interval.toString();
  		return next.execute(result, context);
  	}