1. Dart
2. dart:html
3. MutationRecord
4. target property

MutationRecord class

1. Properties
2. addedNodes
3. attributeName
4. attributeNamespace
5. hashCode
6. nextSibling
7. oldValue
8. previousSibling
9. removedNodes
10. runtimeType
11. target
12. type
13. Methods
14. noSuchMethod
15. toString
16. Operators
17. operator ==

Node get target native;