Constructs a MutationObserver object and sets its MutationCallbackAspose.html.dom.mutations/mutationcallback to callback. The callback is invoked with a list of MutationRecord objects As first argument and the constructed MutationObserver object As second argument. It is invoked after nodes registered with the ObserveNode IMutationObserverInit method are mutated....Constructs a MutationObserver object and sets its MutationCallbackaspose.html.dom.mutations/mutationcallback to callback. The callback is invoked with a list of MutationRecord objects as first argument and the constructed MutationObserver object as second argument. It is invoked after nodes registered with the ObserveNode IMutationObserverInit method are mutated.