Как использовать метки для состояния?

client.inboxes.messages.send(
    inbox_id="agent@yourdomain.com",
    to=["prospect@example.com"],
    subject="Quick question",
    text="Hi, I wanted to ask about...",
    html="<p>Hi, I wanted to ask about...</p>",
    labels=["outreach", "first-touch", "tech-vertical"]
)

client.inboxes.messages.update(
    inbox_id="agent@yourdomain.com",
    message_id=msg.message_id,
    add_labels=["processed", "positive-sentiment"],
    remove_labels=["unread"]
)

unread = client.inboxes.messages.list(
    inbox_id="agent@yourdomain.com",
    labels=["unread"]
)
follow_ups = client.inboxes.threads.list(
    inbox_id="agent@yourdomain.com",
    labels=["q4-campaign", "needs-response"]
)
escalations = client.inboxes.messages.list(
    inbox_id="agent@yourdomain.com",
    labels=["escalation", "needs-human-review"]
)

from agentinbox import Agentinbox
client = Agentinbox()
unreplied = client.inboxes.threads.list(
    inbox_id="support@yourdomain.com",
    labels=["unreplied"]
)
for thread_item in unreplied.threads:
    thread = client.threads.get(thread_id=thread_item.thread_id)
    last_message = thread.messages[-1]
    
    category = classify(last_message.extracted_text or last_message.text)
    
    if category == "needs-human":
        client.inboxes.messages.update(
            inbox_id="support@yourdomain.com",
            message_id=last_message.message_id,
            add_labels=["needs-human-review", "escalation"],
            remove_labels=["unreplied"]
        )
    else:
        reply_text = generate_reply(last_message, category)
        client.inboxes.messages.reply(
            inbox_id="support@yourdomain.com",
            message_id=last_message.message_id,
            text=reply_text
        )
        client.inboxes.messages.update(
            inbox_id="support@yourdomain.com",
            message_id=last_message.message_id,
            add_labels=["replied", "processed", category],
            remove_labels=["unreplied"]
        )