From e94f46eda7d410b03d79d5fec816bdd61b09db55 Mon Sep 17 00:00:00 2001
From: beeth0ven <beeth0vendev@gmail.com>
Date: Thu, 26 Jan 2023 10:44:27 +0800
Subject: [PATCH 1/2] add internal class `Observation`

---
 .../observables/observation.dart              | 20 +++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 lib/src/dart_observable/observables/observation.dart

diff --git a/lib/src/dart_observable/observables/observation.dart b/lib/src/dart_observable/observables/observation.dart
new file mode 100644
index 0000000..a5f0446
--- /dev/null
+++ b/lib/src/dart_observable/observables/observation.dart
@@ -0,0 +1,20 @@
+
+import 'package:dart_scope/dart_scope.dart';
+import 'package:meta/meta.dart';
+
+@internal
+abstract class Observation<T> implements Disposable {
+
+  Observation({
+    required this.onData,
+  }) {
+    init();
+  }
+
+  @internal
+  final OnData<T> onData;
+
+  @internal
+  @mustCallSuper
+  void init();
+}
\ No newline at end of file

From 04a28eb4ddcf4859fe39c6e8a64c8ca3849cc163 Mon Sep 17 00:00:00 2001
From: beeth0ven <beeth0vendev@gmail.com>
Date: Thu, 26 Jan 2023 10:47:35 +0800
Subject: [PATCH 2/2] explicitly imports in `observation.dart`

---
 lib/src/dart_observable/observables/observation.dart | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/src/dart_observable/observables/observation.dart b/lib/src/dart_observable/observables/observation.dart
index a5f0446..4735c7c 100644
--- a/lib/src/dart_observable/observables/observation.dart
+++ b/lib/src/dart_observable/observables/observation.dart
@@ -1,7 +1,9 @@
 
-import 'package:dart_scope/dart_scope.dart';
+import 'package:disposal/disposal.dart';
 import 'package:meta/meta.dart';
 
+import '../observers/observer.dart';
+
 @internal
 abstract class Observation<T> implements Disposable {