text: exports.NODE_VIEW = 1;
  exports.NODE_ELEM = 2;
  exports.PATCH_CREATE = 3;
  exports.PATCH_REMOVE = 4;
  exports.PATCH_REPLACE = 5;
  exports.PATCH_INSERT = 6;
  exports.PATCH_ORDER = 7;
  exports.PATCH_PROP = 8;
  exports.PATCH_VIEW = 9;