ConnectivityUtils constructor Null safety

1. baguette
2. ConnectivityUtils
3. ConnectivityUtils
4. ConnectivityUtils constructor

ConnectivityUtils class

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