Trying to use Laravel policies into components

Question

I'm trying to use Policies inside a Post Component, using Laravel. This is how I'm iterating through the posts in my page.

       @foreach($posts as $post)
            <x-post 
               :id="$post->id" 
               :title="$post->title" 
               :description="$post->description" 
               :userId="$post->user_id" 
               :img="$post->img" 
               :author="$post->user->name"/>
        @endforeach

In the post.blade.php I'm trying to use a 'update' policy method to define which users can see the post:

@can('update', Auth::user(), /*What shoud I pass here?*/)
      <a class="btn btn-success"href="{{route('posts.edit', $id)}}">
           <i class="bi bi-pencil"></i>
      </a>
@endcan

What should I pass as the second parameter of the policy? Normally, it would be a post variable. Since I'm already inside a post, I don't know to proceed.