code: public static final <T extends Date> Function<T[], Interval> dateFieldArrayToInterval(DateTimeZone dateTimeZone) {
  		return new DateFieldArrayToInterval<T>(dateTimeZone);
  	}
docs: <p>
  It creates an {@link Interval} from the input {@link Date} elements.
  The {@link Interval} will be created with the given {@link DateTimeZone}
  </p>
  
  @param dateTimeZone the the time zone ({@link DateTimeZone}) to be used
  @return the {@link Interval} created from the input and arguments