fix: fixing formatting issues. (#38)

* fixing formatting issues.

* fixes.

Author: yasirfolio3

example/lib/main.dart

@@ -54,7 +54,7 @@ class _MyAppState extends State<MyApp> {
       print("Parsed decision event ....................");
       print(notification.type);
       print(notification.userId);
-      print(notification);
+      print(notification.decisionInfo);
       print("decide notification received");
     });
 
@@ -69,7 +69,7 @@ class _MyAppState extends State<MyApp> {
     // variationKey: off
 
     // Setting forced decision
-    userContext.setForcedDecision(
+    await userContext.setForcedDecision(
         OptimizelyDecisionContext("flag1", "flag1_experiment"),
         OptimizelyForcedDecision("variation_a"));
 
@@ -84,7 +84,7 @@ class _MyAppState extends State<MyApp> {
     // variationKey: variation_a
 
     // removing forced decision
-    userContext.removeForcedDecision(
+    await userContext.removeForcedDecision(
         OptimizelyDecisionContext("flag1", "flag1_experiment"));
 
     // Decide call
@@ -131,7 +131,7 @@ class _MyAppState extends State<MyApp> {
     });
 
     // To cancel track listener
-    //await flutterSDK.removeNotificationListener(trackListenerID);
+    await flutterSDK.removeNotificationListener(trackListenerID);
 
     if (!mounted) return;
   }

lib/optimizely_flutter_sdk.dart

@@ -152,15 +152,18 @@ class OptimizelyFlutterSdk {
   /// Takes [int] id which allows user to remove that specific listener.
   /// Returns [BaseResponse] A object containing success result or reason of failure.
   Future<BaseResponse> removeNotificationListener(int id) async {
-    return await OptimizelyClientWrapper.removeNotificationListener(_sdkKey, id);
+    return await OptimizelyClientWrapper.removeNotificationListener(
+        _sdkKey, id);
   }
 
   /// Allows user to clear all notification listeners of specific type.
   ///
   /// Takes [ListenerType] A listener type which allows user to remove only specific type of listeners.
   /// Returns [BaseResponse] A object containing success result or reason of failure.
-  Future<BaseResponse> clearNotificationListeners(ListenerType listenerType) async {
-    return await OptimizelyClientWrapper.clearNotificationListeners(_sdkKey, listenerType);
+  Future<BaseResponse> clearNotificationListeners(
+      ListenerType listenerType) async {
+    return await OptimizelyClientWrapper.clearNotificationListeners(
+        _sdkKey, listenerType);
   }
 
   /// Allows user to check and clear all notification listeners.

lib/src/optimizely_client_wrapper.dart

@@ -69,7 +69,7 @@ class OptimizelyClientWrapper {
       Constants.eventMaxQueueSize: eventOptions.maxQueueSize,
     };
 
-    // clearing notification listeners, if they are mapped to the same sdkKey. 
+    // clearing notification listeners, if they are mapped to the same sdkKey.
     activateCallbacksById.remove(sdkKey);
     decisionCallbacksById.remove(sdkKey);
     trackCallbacksById.remove(sdkKey);
@@ -162,11 +162,9 @@ class OptimizelyClientWrapper {
   }
 
   /// Remove notification listener by notification id.
-  static Future<BaseResponse> removeNotificationListener(String sdkKey, int id) async {
-    Map<String, dynamic> request = {
-      Constants.sdkKey: sdkKey,
-      Constants.id: id
-    };
+  static Future<BaseResponse> removeNotificationListener(
+      String sdkKey, int id) async {
+    Map<String, dynamic> request = {Constants.sdkKey: sdkKey, Constants.id: id};
 
     activateCallbacksById[sdkKey]?.remove(id);
     decisionCallbacksById[sdkKey]?.remove(id);
@@ -180,7 +178,8 @@ class OptimizelyClientWrapper {
   }
 
   /// Remove notification listeners by notification type.
-  static Future<BaseResponse> clearNotificationListeners(String sdkKey, ListenerType listenerType) async {
+  static Future<BaseResponse> clearNotificationListeners(
+      String sdkKey, ListenerType listenerType) async {
     var callbackIds = _clearAllCallbacks(sdkKey, listenerType);
     Map<String, dynamic> request = {
       Constants.sdkKey: sdkKey,
@@ -193,7 +192,8 @@ class OptimizelyClientWrapper {
   }
 
   /// Removes all notification listeners.
-  static Future<BaseResponse> clearAllNotificationListeners(String sdkKey) async {
+  static Future<BaseResponse> clearAllNotificationListeners(
+      String sdkKey) async {
     var callbackIds = _clearAllCallbacks(sdkKey);
     Map<String, dynamic> request = {
       Constants.sdkKey: sdkKey,