async/await in Windows Runtime Components

dosomethingasync.cs

public async Task DoSomethingAsync()
{
  await SomethingElseAsync();
}

public async Task<Foo> DoAnotherAsync()
{
    return await ReturnAFooAsync();
}

wrc_dosomethingasync.cs

public IAsyncAction GetDoSomethingAsync()
{
    return DoSomethingAsync().AsAsyncAction();
}

internal async Task DoSomethingAsync()
{
    await SomethingElseAsync();
}

public IAsyncOperation<Foo> GetDoAnotherAsync()
{
    return DoAnotherAsync().AsAsyncOperation();
}

internal async Task<Foo> DoAnotherAsync()
{
    return await ReturnAFooAsync();
}