GeoLocationFromModel constructor Null safety

1. next_photo
2. features
3. GeoLocationFromModel
4. GeoLocationFromModel constructor

GeoLocationFromModel class

1. Constructors
2. GeoLocationFromModel
3. Properties
4. hashCode
5. runtimeType
6. Methods
7. call
8. noSuchMethod
9. toString
10. Operators
11. operator ==