code: protected <R, T extends Transformer<Transformed<R>>> Iterable<T> getTransformer(Class<T> transformerClass) {
          return Providers.getAllRankedSortedProviders(manager, transformerClass);
      }
docs: <p>getTransformer.</p>
  
  @param transformerClass a {@link java.lang.Class} object.
  @param <R>              Result.
  @param <T>              Transformer.
  @return a {@link java.lang.Iterable} object.