<?php
//-------------------------------------------------------------------
// ビューテンプレートで使うクラスエイリアスを登録
//-------------------------------------------------------------------
return function():bool
{
    $aliases =
    [
        /* Core */
        ....

        /* App */
        'ViewHelper' => \App\Helpers\ViewHelper::class,
        'ValidatorErrorBag' => \App\Foundation\ValidatorErrorBag::class,
        'AuthUser' => \App\Foundation\Security\AuthUser::class,
    ];

    ....
};