code: public Tags and(@Nullable String... keyValues) {
          if (keyValues == null || keyValues.length == 0) {
              return this;
          }
          return and(Tags.of(keyValues));
      }
docs: Return a new {@code Tags} instance by merging this collection and the specified key/value pairs.
  
  @param keyValues the key/value pairs to add
  @return a new {@code Tags} instance