DelegatingQueue class

1. Constructors
2. DelegatingQueue
3. Properties
4. delegate
5. first
6. hashCode
7. isEmpty
8. isNotEmpty
9. iterator
10. last
11. length
12. runtimeType
13. single
14. Methods
15. add
16. addAll
17. addFirst
18. addLast
19. cast
20. clear
21. remove
22. removeFirst
23. removeLast
24. removeWhere
25. retainWhere
26. retype
27. any
28. contains
29. elementAt
30. every
31. expand
32. firstWhere
33. fold
34. followedBy
35. forEach
36. join
37. lastWhere
38. map
39. noSuchMethod
40. reduce
41. singleWhere
42. skip
43. skipWhile
44. take
45. takeWhile
46. toList
47. toSet
48. toString
49. where
50. whereType
51. Operators
52. operator ==