Alternative for abstract static method in Dart

I need something like an abstract static method, but since we cannot do something like this in the dart, so I am looking for alternatives, my situation is like this:-

Firstly classes:-

abstract class Parent {
  static String get name;
  static Parent fromSecretText(String name);
}

class ChildFirst {
  static String get name => 'first_child'; //note:- here it is not the typename
  static ChildFirst fromSecretText(String name) { 
    // generate object 
  }
}

class ChildSecond {
  static String get name => 'second_child';
  static ChildSecond fromSecretText(String name) { 
    // generate object 
  }
}

Now I need methods like this:-

Future<List<T>> getMultiple<T extends Parent>() async {
  final List<String> secretKeys = await getSecretKeys(T.name);
  List<T> res = [];
  for (var secretKey in secretKeys) res.add(T.fromSecretText(secretKey));
  return res;
}