1. Properties
  2. controller
  3. hashCode
  4. on
  5. onMessage
  6. ready
  7. runtimeType
  8. Methods
  9. addEventListener
  10. dispatchEvent
  11. getRegistration
  12. getRegistrations
  13. noSuchMethod
  14. register
  15. removeEventListener
  16. toString
  17. Operators
  18. operator ==
  19. Constants
  20. messageEvent