make static-analyse code

app/Livewire/Counter.php

@@ -3,22 +3,23 @@
 namespace App\Livewire;
 
 use Livewire\Component;
+use Illuminate\View\View;
 
 class Counter extends Component
 {
-    public $count = 0;
+    public int $count = 0;
 
-    public function inc()
+    public function inc(): void
     {
         $this->count++;
     }
 
-    public function dec()
+    public function dec(): void
     {
         $this->count--;
     }
 
-    public function render()
+    public function render(): View
     {
         return view('livewire.counter');
     }