// ignore_for_file: always_declare_return_types, type_annotate_public_apis

// #docregion
// Part 1
addHello(String user) {}

// Part 2
// You can call the provided async function fetchUsername()
// to return the username.
greetUser() {}

// Part 3
// You can call the provided async function logoutUser()
// to log out the user.
sayGoodbye() {}
// #enddocregion
