code: public function actionProfile()
      {
          $model = $this->finder->findProfileById(\Yii::$app->user->identity->getId());
  
          $this->performAjaxValidation($model);
  
          if ($model->load(\Yii::$app->request->post()) && $model->save()) {
              \Yii::$app->getSession()->setFlash('success', \Yii::t('user', 'Your profile has been updated'));
              return $this->refresh();
          }
  
          return $this->render('profile', [
              'model' => $model,
          ]);
      }
docs: Shows profile settings form.
  @return string|\yii\web\Response