1. Dart
2. dart:indexed_db
3. ObjectStore
4. getKey method

ObjectStore class

1. Properties
2. autoIncrement
3. indexNames
4. keyPath
5. name
6. transaction
7. hashCode
8. runtimeType
9. Methods
10. add
11. clear
12. count
13. createIndex
14. delete
15. deleteIndex
16. getAll
17. getAllKeys
18. getKey
19. getObject
20. index
21. openCursor
22. openKeyCursor
23. put
24. noSuchMethod
25. toString
26. Operators
27. operator ==

Request getKey(Object key) native;