code: public static BulkheadMetrics ofIterable(String prefix, Iterable<Bulkhead> bulkheads) {
          return new BulkheadMetrics(prefix, bulkheads);
      }
docs: Creates a new instance BulkheadMetrics {@link BulkheadMetrics} with
  an {@link Iterable} of bulkheads as a source.
  
  @param bulkheads the bulkheads