code: public MetadataBuilder setTags(List<String> tags)
      {
          if (tags == null)
              this.tags = new HashSet<>();
          else
              this.tags = Collections.unmodifiableSet(new HashSet<>(tags));
  
          return this;
      }
docs: Set the tags by which this {@link RulesetMetadata} is classified.
  <p>
  Inherits from {@link RulesetMetadata#getTags()} if available.