Relacionamento laravel 8

use Laravel\Sanctum\HasApiTokens;
 
class User extends Authenticatable
{
    use HasApiTokens, HasFactory, Notifiable;
}

    public function security_user()
    {
        return $this->hasMany('App\Models\SecurityUser',  'user_id', 'id');
    }

ou 

    public function security_user()
    {
        return $this->hasMany(SecurityUser::class,  'user_id', 'id');
    }

namespace App\Models;

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

class SecurityUser extends Model
{
    use HasFactory;
    
    protected $fillable = ['id', 'user_id', 'security_route_id', 'status'];
}