onPress property Null safety

1. baguette
2. AtlasWindow
3. AtlasWindow
4. onPress property

AtlasWindow class

1. Constructors
2. AtlasWindow
3. Properties
4. description
5. hashCode
6. onPress
7. runtimeType
8. title
9. Methods
10. noSuchMethod
11. toString
12. Operators
13. operator ==