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import 'dart:async';

typedef Listener = void Function();

int _actionsProcessing = 0;
Set<Observable>? _currentReactives;
Set<Observable>? _scheduledReactives;

class Observable<T> {
  Observable(T initialValue) : _value = initialValue;

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// --------------------------------------------------------------------------------- //


/// GENERATED ---> ///
class _ResultBaseModel<T> {
  _ResultBaseModel({required this.value});
  T value;
}

abstract class Result<T> implements ISerializable {

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extension on int? {
  p() => print('int, ${this.runtimeType}');
}
extension on Null {
  p() => print('null');
}
const _defaultNull = null;
// class Ii implements int {}

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@sealed
abstract class _CarPart {
  Engine(int cylinders, int horsepower);
  Transmission(int gears, bool isManual);
}

class Car {
  const Car(
    this.model, {
    required this.parts,

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abstract class CarPart {}

class Engine implements CarPart {
  const Engine({
    required this.cylinders,
    required this.horsepower,
  });
  final int cylinders;
  final int horsepower;
}

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class CarPart {
  const CarPart();

  // METHOD COULD BE GENERATED
  T match<T>({
    required T Function(Engine v) engine,
    required T Function(Transmission v) transmission,
  }) {
    // ignore_for_file: curly_braces_in_flow_control_structures
    if (this is Engine) return engine(this as Engine);

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abstract class CarPart {}

class Engine implements CarPart {
  const Engine({
    required this.cylinders,
    required this.horsepower,
  });
  final int cylinders;
  final int horsepower;
}

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abstract class CarPart {
  CarPartType get type;
}

enum CarPartType<T extends CarPart> {
  engine<Engine>(),
  transmission<Transmission>(),
}

class Engine implements CarPart {

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class CarPart {
  const CarPart(this.type);
  final CarPartType type;
}

enum CarPartType<T extends CarPart> {
  engine<Engine>(),
  transmission<Transmission>(),
}

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import 'package:data_classes/data_classes.dart';

import 'package:common/const.dart';

part 'change_log.g.dart';

typedef FieldValueGetter<T> = T Function(dynamic);

enum EntityType {
  series,