Example1.Solution.kt

private val isLoading = MutableStateFlow(false)
private val loggedInUser = MutableStateFlow<User?>(null)
private val error = MutableStateFlow<String?>(null)

// Combining these states to form a LoginState
val state: StateFlow<LoginState> = combineStates(
  isLoading, 
  loggedInUser,
  error
) { loading, user, errorMessage ->
  LoginState(loading, user, errorMessage)
}