1. Constructors
2. new
3. circle
4. fromRect
5. Properties
6. area
7. axisLength
8. boundingBox
9. center
10. endCaps
11. hashCode
12. medialAxis
13. perimeter
14. radius
15. runtimeType
16. totalLength
17. totalWidth
18. Methods
19. contains
20. noSuchMethod
21. rotate
22. scale
23. toString
24. translate
25. Operators
26. operator ==