1. Dart
2. dart:indexed_db
3. Observer
4. unobserve method

Observer class

1. Constructors
2. Observer
3. Properties
4. hashCode
5. runtimeType
6. Methods
7. noSuchMethod
8. observe
9. toString
10. unobserve
11. Operators
12. operator ==

void unobserve(Database db) native;