from datetime import datetime

from .message import MailIntakeMessage

class MailIntakeThread:
    thread_id: str
    normalized_subject: str
    participants: set[str]
    messages: list[MailIntakeMessage]
    last_activity_at: datetime | None
    def __init__(
        self,
        thread_id: str,
        normalized_subject: str,
        participants: set[str] = ...,
        messages: list[MailIntakeMessage] = ...,
        last_activity_at: datetime | None = ...,
    ) -> None: ...
    def add_message(self, message: MailIntakeMessage) -> None: ...