How do we pass file ids in message creation on asssistants now? about azure-sdk-for-net HOT 2 OPEN

[Test]
public void MessageWithAttachmentWorks()
{
    AssistantClient client = GetTestClient();

    FileClient fileClient = GetTestClient<FileClient>(TestScenario.Files);
    OpenAIFileInfo numbersFile = fileClient.UploadFile(
        BinaryData.FromString("""
        15
        20
        22
        12
        20
        """).ToStream(),
        "text/plain",
        FileUploadPurpose.Assistants);
    Validate(numbersFile);

    Assistant assistant = client.CreateAssistant(
        "gpt-4o",
        new AssistantCreationOptions()
        {
            Tools = { new CodeInterpreterToolDefinition() },
            ToolResources = new()
            {
                CodeInterpreter = new()
                {
                        FileIds = [numbersFile.Id],
                }
            }
        });

    AssistantThread thread = client.CreateThread();
    Validate(thread);

    ThreadMessage message = client.CreateMessage(
        thread.Id,
        MessageRole.User,
        content:
        [
            MessageContent.FromText("What's the standard deviation of the numbers in the attached file?"),
        ],
        new MessageCreationOptions()
        {
            Attachments =
            {
                new MessageCreationAttachment(
                    numbersFile.Id,
                    tools: [ new CodeInterpreterToolDefinition() ]),
            }
        });
    Validate(message);

    foreach (StreamingUpdate chunk in client.CreateRunStreaming(thread.Id, assistant.Id))
    {
        if (chunk is MessageContentUpdate contentUpdate)
        {
            Console.Write(contentUpdate.Text);
        }
    }
}