1children:
2- aaa
3- bbb
4developers:
5- !!examples.collections.TypeSafeListWithInterfaceTest$Developer
6  name: Fred
7  role: creator
8- !!examples.collections.TypeSafeListWithInterfaceTest$Committer
9  key: 34
10  name: John
11  role: committer
12name: Bean123