Как переопределить assetManager для Gii модуля?

... config ...
        'assetManager' => [
            'bundles' => [
                'yii\bootstrap\BootstrapAsset' => [
                    'sourcePath' => '@bower/bootstrap-sass/assets',
                    'css' => [],
                ],
                'yii\bootstrap\BootstrapPluginAsset' => [
                    'sourcePath' => '@bower/bootstrap-sass/assets',
                    'js' => ['javascripts/bootstrap.min.js']
                ],
            ],
        ],