migrate-async-await-combine-api-use.swift

struct API {
    //...
    func loadTodo() -> AnyPublisher<Todo, Error> {
        //...
    }
}

class Client1 {
    // 1. Make function async
    func loadTodo() async {
        do {
            // 2. Call async() on AnyPublisher
            let todo = try await api.loadTodo().async()
            
            //...
        } catch {
           //...
        }
    }
}