How Do I Add An Image on Push Notification ?

[officersiam]

<?php

namespace App\Filament\Resources\LawPostResource\Pages;

use App\Filament\Resources\LawPostResource;
use Filament\Actions;
use Filament\Resources\Pages\EditRecord;
use Berkayk\OneSignal\OneSignalFacade as OneSignal;
// use OneSignal;

class EditLawPost extends EditRecord
{
    protected static string $resource = LawPostResource::class;

    protected function afterSave(): void
    {
        $post = $this->record;
        $tags = explode(',', $post->tags);
        $imageUrl = asset('images/law/' . $post->slug . '.jpg');

        OneSignal::sendNotificationToAll(
            "{$post->title} [Updated]",
            $url = route('law.show', $post->slug),
            $data = [
                'post_id' => $post->id,
                'author' => $post->author->name, // Assuming the author relationship exists
                'big_picture' => $imageUrl,     // Assuming image URL is stored in the post model
            ],
            null,  // Add user IDs or filters if needed
            $tags,
        );
    }

    protected function getHeaderActions(): array
    {
        return [
            Actions\ViewAction::make(),
            Actions\DeleteAction::make(),
            Actions\ForceDeleteAction::make(),
            Actions\RestoreAction::make(),
        ];
    }
}