docs: public CDACallback<Collection<Transformed>> all(CDACallback<Collection<Transformed>> callback) {
      return Callbacks.subscribeAsync(
          baseQuery()
              .all()
              .map(
                  new Function<CDAArray, List<Transformed>>() {
                    @Override
                    public List<Transformed> apply(CDAArray array) {
                      final ArrayList<Transformed> result = new ArrayList<>(array.total());
  
                      for (final CDAResource resource : array.items) {
                        if (resource instanceof CDAEntry
                            && ((CDAEntry) resource).contentType().id().equals(contentTypeId)) {
                          result.add(TransformQuery.this.transform((CDAEntry) resource));
                        }
                      }
                      return result;
                    }
                  }
              ),
          callback,
          client);
    }