presseportale/app/Models/InvoiceBillingAddress.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\HasMany;

class InvoiceBillingAddress extends Model
{
    use HasFactory;

    protected $fillable = [
        'salutation_key',
        'title',
        'name',
        'address1',
        'address2',
        'postal_code',
        'city',
        'country_code',
        'vat_id',
    ];

    public function invoices(): HasMany
    {
        return $this->hasMany(Invoice::class);
    }
}