code: public static BulkheadExports ofIterable(String prefix, Iterable<Bulkhead> bulkheads) {
          return new BulkheadExports(prefix, bulkheads);
      }
docs: Creates a new instance of {@link BulkheadExports} with specified metrics names prefix and
  {@link Iterable} of bulkheads.
  
  @param prefix the prefix of metrics names
  @param bulkheads the bulkheads