How to structure language files in Yii2?

Question

Yii

The i18n component in the config is as follows:

'i18n' => [
    		'translations' => [
      		'app*' => [
        		'class' => 'yii\i18n\PhpMessageSource',
        		'basePath' => '@app/messages',
        		//'sourceLanguage' => 'en-US',
        		'fileMap' => [
        				'app'       => 'app.php',
        				'app/error' => 'error.php',
        		],
      		],
    		],
    	],

I don't understand how to make the structure look like this:
/messages/langFolder/ControllerName/<Имя_файла>
And then, when calling the Yii::t() method , the language file is loaded from the directory corresponding to the controller.