Use manifest class constructor for common fields

[FatulM]

Add ability to use manifest class constructor for common fields.

@Sealed()
abstract class _ApiError {
  _ApiError({String message, String? code,});

  void internetError();

  void badRequest();

  void internalError(Object? error);
}

Complexities arise when combining constructor defined common fields and member defined ones. Also this feature should default values (static and dynamic) and overridden dynamic types.

Special thanks to @iamarnas for his recommendations.

[FatulM]

@iamarnas