public function getViewHelperConfig()
    {
        return [
            'aliases'   => [
                'h1'                      => H1::class,
                'date'                    => Date::class,
                'bootstrapForm'           => BootstrapForm::class,
                'bootstrapMenu'           => BootstrapMenu::class,
                'bootstrapFlashMessenger' => BootstrapFlashMessenger::class,
            ],
            'factories' => [
                H1::class                      => InvokableFactory::class,
                Date::class                    => InvokableFactory::class,
                BootstrapForm::class           => InvokableFactory::class,
                BootstrapMenu::class           => InvokableFactory::class,
                BootstrapFlashMessenger::class =>
                    BootstrapFlashMessengerFactory::class,
            ],
        ];
    }