Make moduleobserver type hinting overridable (#12670)

app/Observers/ModuleModelObserver.php

@@ -44,25 +44,37 @@ class ModuleModelObserver
         }
     }
 
-    public function saving(Eloquent $model)
+    /**
+     * @param Eloquent $model
+     */
+    public function saving($model)
     {
         if (! $model->isDirty()) {
             echo '.';
         }
     }
 
-    public function updated(Eloquent $model)
+    /**
+     * @param Eloquent $model
+     */
+    public function updated($model)
     {
         d_echo('Updated data:', 'U');
         d_echo($model->getDirty());
     }
 
-    public function created(Eloquent $model)
+    /**
+     * @param Eloquent $model
+     */
+    public function created($model)
     {
         echo '+';
     }
 
-    public function deleted(Eloquent $model)
+    /**
+     * @param Eloquent $model
+     */
+    public function deleted($model)
     {
         echo '-';
     }