SnackUtils constructor Null safety

1. baguette
2. SnackUtils
3. SnackUtils
4. SnackUtils constructor

SnackUtils class

1. Constructors
2. SnackUtils
3. Properties
4. hashCode
5. runtimeType
6. Methods
7. noSuchMethod
8. toString
9. Operators
10. operator ==
11. Static methods
12. showSnack