* Useful for debugging and displaying content with line references.
     *
     * @param prefix the prefix to add before each line number
     * @param content the content to add line numbers to
     * @return the content with line numbers prepended, or empty string if content is blank
     */
    public String appendLineNumber(final String prefix, final String content) {

                requestBuilder.prefix(normalizedPrefix);
            }

            final ListObjectsV2Response response = s3Client.listObjectsV2(requestBuilder.build());

            // Process common prefixes (directories)
            for (final CommonPrefix commonPrefix : response.commonPrefixes()) {
                final String dirName = getName(commonPrefix.prefix());

		}
		err = werr
	}
}

// stringsHasPrefixFold tests whether the string s begins with prefix ignoring case.
func stringsHasPrefixFold(s, prefix string) bool {
	// Test match with case first.
	return len(s) >= len(prefix) && (s[0:len(prefix)] == prefix || strings.EqualFold(s[0:len(prefix)], prefix))
}

func ptr[T any](a T) *T {
	return &a
}

            xpackPatternSet.setIncludes(includeXpack.get().stream().map(prefix -> prefix + "*/**").collect(Collectors.toList()));
            xpackFileTree = xpackConfigToFileTree.apply(xpackConfig).matching(xpackPatternSet);
        }
        if (includeCore.get().isEmpty() == false) {
            corePatternSet.setIncludes(includeCore.get().stream().map(prefix -> prefix + "*/**").collect(Collectors.toList()));

        // Default constructor
    }

    /**
     * Gets the path prefix for API endpoints.
     * @return The path prefix.
     */
    public String getPathPrefix() {
        return pathPrefix;
    }

    /**
     * Sets the path prefix for API endpoints.
     * @param pathPrefix The path prefix to set.
     */
    public void setPathPrefix(final String pathPrefix) {

    void deleteObject(String objectName);

    /**
     * Lists objects in storage with the given prefix.
     *
     * @param prefix the path prefix to list objects under (null or empty for root)
     * @param maxItems maximum number of items to return
     * @return list of storage items
     */
    List<StorageItem> listObjects(String prefix, int maxItems);

    /**
     * Gets tags/metadata for an object.
     *

        return new DefaultInterpolator();
    }

    @Nonnull
    public static UnaryOperator<String> prefix(String prefix, UnaryOperator<String> cb) {
        return s -> {
            String v = null;
            if (s.startsWith(prefix)) {
                v = cb.apply(s.substring(prefix.length()));
            }
            return v;
        };
    }

    @SafeVarargs
    @Nonnull

    protected List<Long> create(Long[] elements) {
      Long[] prefix = {86L, 99L};
      Long[] all = concat(prefix, elements);
      return asList(all).subList(2, elements.length + 2);
    }
  }

  public static final class LongsAsListMiddleSubListGenerator extends TestLongListGenerator {
    @Override
    protected List<Long> create(Long[] elements) {
      Long[] prefix = {Long.MIN_VALUE, Long.MAX_VALUE};

      Short[] prefix = {(short) 86, (short) 99};
      Short[] all = concat(prefix, elements);
      return asList(all).subList(2, elements.length + 2);
    }
  }

  public static final class ShortsAsListMiddleSubListGenerator extends TestShortListGenerator {
    @Override
    protected List<Short> create(Short[] elements) {
      Short[] prefix = {Short.MIN_VALUE, Short.MAX_VALUE};

      Character[] prefix = {(char) 86, (char) 99};
      Character[] all = concat(prefix, elements);
      return asList(all).subList(2, elements.length + 2);
    }
  }

  public static final class CharsAsListMiddleSubListGenerator extends TestCharListGenerator {
    @Override
    protected List<Character> create(Character[] elements) {
      Character[] prefix = {Character.MIN_VALUE, Character.MAX_VALUE};