"""Shared completion policies for deterministic Message stages."""

from typing import Literal


MESSAGE_INTERRUPTIBLE = "interruptible"
MESSAGE_PLAYBACK = "playback"
MESSAGE_CONFIRMATION = "confirmation"
MESSAGE_COMPLETION_POLICIES = frozenset(
    {
        MESSAGE_INTERRUPTIBLE,
        MESSAGE_PLAYBACK,
        MESSAGE_CONFIRMATION,
    }
)
MessageCompletionPolicy = Literal[
    "interruptible",
    "playback",
    "confirmation",
]