How to refactor a Flutter method signature in Android Studio

I want to adjust the method signature of a dart class using Android Studio.

For example, if I want to change from named to positional arguments for MyClass:

// * old_signature.dart
abstract class MyClass {
  // call using myClass.fetchName(index: 123);
  String fetchName({int index});
}

...

// * new_signature.dart
abstract class MyClass {
  // call using myClass.fetchName(123);
  String fetchName(int index);
}

Is it possible to use Android Studio to update all method calls to MyClass.fetchName with a refactored signature?