}, removeListeners_: function(t3) {
              var e3 = this.options;
              e3.attributes && t3.removeEventListener("DOMAttrModified", this, true), e3.characterData && t3.removeEventListener("DOMCharacterDataModified", this, true), e3.childList && t3.removeEventListener("DOMNodeInserted", this, true), (e3.childList || e3.subtree) && t3.removeEventListener("DOMNodeRemoved", this, true);
            }, addTransientObserver: function(t3) {