How to tell phpDoc that a variable is just a class?

Question

PHP

There is this code:

class app\models\Product{
         public static getSomeClass($modelType){
                  if ($modelType=='MyClass1'){
                      return 'app\models\MyClass1';
                  } else{
                      return 'app\models\MyClass2';
                  }
         }
}

class app\models\MyClass1{
         public static function sayHello(){
                  echo 'Hello';
         }
}

$instClass = Product::getSomeClass('MyClass1');
$instClass::sayHello();

Accordingly, the IDE does not understand that $instClass is the class MyClass1, and autocomplete for $instClass does not work. How to tell the IDE that $instClass is the class MyClass1?

Answer 1

No way((

Answer 2

/**
@return User
*/
public static getUserClass(){
...
}

Answer 3

/** @var MyClass1 $instClass */
$instClass = Product::getSomeClass('MyClass1');

Answer 4

/**
 * @return MyClass1 | MyClass2
 */
public static getSomeClass($modelType){
}