https://pub.dev/documentation/flutter_map_tile_caching/latest/flutter_map_tile_caching/NegativeResponseTileEvent-class.html
NegativeResponseTileEvent class - flutter_map_tile_caching library - Dart API
API docs for the NegativeResponseTileEvent class from the flutter_map_tile_caching library, for the Dart programming language.
classfluttermaptilecaching