user property
Implementation
UserRepo user = UserRepo(
get: () =>
throw UnimplementedError('user.get() has not been implemented'),
set: (User user) =>
throw UnimplementedError('user.set() has not been implemented'),
setValue: (String key, dynamic value) =>
throw UnimplementedError('user.setValue() has not been implemented'),
getValue: (String key) =>
throw UnimplementedError('user.getValue() has not been implemented'));