frontend/models/forms/SignUpForm.php
public function attributeLabels() {

		return [
			'newsletterId' => Yii::$app->newsletterMessage->getMessage( NewsletterGlobal::FIELD_NEWSLETTER ),
			'name' => Yii::$app->coreMessage->getMessage( CoreGlobal::FIELD_NAME ),
			'email' => Yii::$app->coreMessage->getMessage( CoreGlobal::FIELD_EMAIL )
		];
	}
public function attributeLabels() {

		return [
			'newsletterId' => Yii::$app->newsletterMessage->getMessage( NewsletterGlobal::FIELD_NEWSLETTER ),
			'name' => Yii::$app->coreMessage->getMessage( CoreGlobal::FIELD_NAME ),
			'email' => Yii::$app->coreMessage->getMessage( CoreGlobal::FIELD_EMAIL )
		];
	}
yii\base\Model ---------