private static <T> Set<ExportEntry<T>> withPrefix(Set<ExportEntry<T>> entries, String exportPrefix) {
            checkArgument(!exportPrefix.isEmpty(), "exportPrefix must not be empty");

            return entries.stream().map(entry -> entry.withPrefix(exportPrefix))
                          .collect(ImmutableSet.toImmutableSet());
        }
Adds the property represented by the specified key pattern to the export list. Please refer to the
<a href="https://armeria.dev/docs/advanced-logging">Logging contextual information</a>
in order to learn how to specify a key pattern.
core/src/main/java/com/linecorp/armeria/common/logging/ExportGroupBuilder.java