AccelerationInput constructor Null safety

1. flutter_lwp
2. flutter_lwp
3. AccelerationInput
4. AccelerationInput constructor

AccelerationInput mixin

1. Constructors
2. AccelerationInput
3. Properties
4. activeMode
5. attachedIO
6. hashCode
7. hub
8. portId
9. rawValues
10. runtimeType
11. siValues
12. stream
13. Methods
14. dispose
15. getAcceleration
16. getModeFor
17. inputModeActive
18. interrogate
19. noSuchMethod
20. setInputMode
21. toJsonObject
22. toString
23. Operators
24. operator ==