code: public java.util.List<String> getRestorableNodeTypes() {
          if (restorableNodeTypes == null) {
              restorableNodeTypes = new com.amazonaws.internal.SdkInternalList<String>();
          }
          return restorableNodeTypes;
      }
docs: <p>
  The list of node types that this cluster snapshot is able to restore into.
  </p>
  
  @return The list of node types that this cluster snapshot is able to restore into.