1. dartyaml
2. main
3. AST
4. isComment method

AST class

1. Constructors
2. AST
3. Properties
4. commentIndex
5. comments
6. root
7. hashCode
8. runtimeType
9. Methods
10. addNode
11. getIndentationLevel
12. injectComments
13. isComment
14. removeComments
15. noSuchMethod
16. toString
17. Operators
18. operator ==
19. Static methods
20. iterateTree
21. movePointer
22. treeToMap

bool isComment(String line) {
  line = line.trim();
  final regex = RegExp(r'#.*');
  return regex.hasMatch(line) ? true : false;
}