Getting the Laravel/Eloquent model fillable list

ModelFillableList.php

<?php

namespace App\Traits;

trait ModelFillableList
{
    /**
     * function getAllFillable
     *
     * @return ?array
     */
    public static function getAllFillable(): ?array
    {
        return (new static())->getFillable();
    }
}

MyModel.php

<?php

namespace App\Models;

use App\Traits\ModelFillableList;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;

class MyModel extends Model
{
    use HasFactory;
    use ModelFillableList;
}

using.php

<?php

// ...
public function store(Request $request)
{
    // ...
    $data = $request->only(MyModel::getAllFillable());
    // ...
}