1. Dart
2. dart:html
3. ShadowRoot
4. host property

ShadowRoot class

1. Properties
2. activeElement
3. applyAuthorStyles
4. baseUri
5. childNodes
6. children
7. delegatesFocus
8. firstChild
9. fullscreenElement
10. hashCode
11. host
12. innerHtml
13. isConnected
14. lastChild
15. mode
16. nextNode
17. nodeName
18. nodes
19. nodeType
20. nodeValue
21. olderShadowRoot
22. on
23. ownerDocument
24. parent
25. parentNode
26. pointerLockElement
27. previousNode
28. resetStyleInheritance
29. runtimeType
30. styleSheets
31. text
32. Methods
33. addEventListener
34. append
35. appendHtml
36. appendText
37. clone
38. contains
39. dispatchEvent
40. elementFromPoint
41. elementsFromPoint
42. getElementById
43. getRootNode
44. getSelection
45. hasChildNodes
46. insertAllBefore
47. insertBefore
48. noSuchMethod
49. querySelector
50. querySelectorAll
51. remove
52. removeEventListener
53. replaceWith
54. setInnerHtml
55. toString
56. Operators
57. operator ==
58. Static properties
59. supported

Element get host native;