1. Constructors
  2. StringConversionSink
  3. from
  4. fromStringSink
  5. withCallback
  6. Properties
  7. hashCode
  8. runtimeType
  9. Methods
  10. add
  11. addSlice
  12. asStringSink
  13. asUtf8Sink
  14. close
  15. noSuchMethod
  16. toString
  17. Operators
  18. operator ==