The core library of ff_annotation_route, support both null-safety and non-null-safety.
- null-safety
environment:
sdk: '>=2.12.0 <3.0.0'
dependencies:
ff_annotation_route_core: ^2.0.0- non-null-safety
environment:
sdk: '<2.12.0'
dependencies:
ff_annotation_route_core: ^2.0.1-non-null-safety