1. Dart
2. dart:developer
3. ServiceExtensionResponse
4. extensionError constant

ServiceExtensionResponse class

1. Constructors
2. error
3. result
4. Properties
5. errorCode
6. errorDetail
7. result
8. hashCode
9. runtimeType
10. Methods
11. isError
12. noSuchMethod
13. toString
14. Operators
15. operator ==
16. Constants
17. extensionError
18. extensionErrorMax
19. extensionErrorMin
20. invalidParams
21. kExtensionError
22. kExtensionErrorMax
23. kExtensionErrorMin
24. kInvalidParams

static const extensionError = -32000