可以自由扩展 Passport 使用的模型:

use Laravel\Passport\Client as PassportClient;

class Client extends PassportClient
{
    // ...
} 

然后，你可以通过 Passport 类自定义模型覆盖默认模型：

use App\Models\Passport\AuthCode;
use App\Models\Passport\Client;
use App\Models\Passport\PersonalAccessClient;
use App\Models\Passport\Token;

/**
 * Register any authentication / authorization services.
 *
 * @return void
 */
public function boot()
{
    $this->registerPolicies();

    Passport::routes();

    Passport::useTokenModel(Token::class);
    Passport::useClientModel(Client::class);
    Passport::useAuthCodeModel(AuthCode::class);
    Passport::usePersonalAccessClientModel(PersonalAccessClient::class);
}