1. Dart
2. dart:developer
3. TimelineSyncFunction<T> typedef

##### dart:developer library

1. Classes
2. Counter
3. Flow
4. Gauge
5. Metric
6. Metrics
7. Service
8. ServiceExtensionResponse
9. ServiceProtocolInfo
10. Timeline
11. TimelineTask
12. UserTag
13. Functions
14. debugger
15. getCurrentTag
16. inspect
17. log
18. postEvent
19. registerExtension
20. Typedefs
21. ServiceExtensionHandler
22. TimelineAsyncFunction
23. TimelineSyncFunction

description

# TimelineSyncFunction<T> typedef Null safety

T TimelineSyncFunction ()

A typedef for the function argument to Timeline.timeSync.

## Implementation

    typedef TimelineSyncFunction<T> = T Function();