rename to map_not_null.dart

Author: hoc081098

lib/src/impl/real_storage.dart

@@ -7,7 +7,7 @@ import '../interface/rx_storage.dart';
 import '../interface/storage.dart';
 import '../logger/logger.dart';
 import '../model/key_and_value.dart';
-import '../stream_extensions/map_not_null_stream_transformer.dart';
+import '../stream_extensions/map_not_null.dart';
 import '../stream_extensions/single_subscription.dart';
 
 /// Default [RxStorage] implementation

lib/src/stream_extensions/map_not_null_stream_transformer.dart renamed to lib/src/stream_extensions/map_not_null.dart

@@ -1,6 +1,6 @@
 import 'dart:async';
 
-import 'package:rx_storage/src/stream_extensions/map_not_null_stream_transformer.dart';
+import 'package:rx_storage/src/stream_extensions/map_not_null.dart';
 import 'package:test/test.dart';
 
 void main() {