export declare enum MessageTypeEnum {
    MESSAGE_TYPE_UNSPECIFIED = "MESSAGE_TYPE_UNSPECIFIED",
    TEXT = "TEXT",
    /**
     * This item is deprecated!
     * @deprecated
     */
    text = "text",
    TEXT_AND_NOTIFY = "TEXT_AND_NOTIFY",
    EXPIRATION_NOTIFICATION = "EXPIRATION_NOTIFICATION",
    /**
     * This item is deprecated!
     * @deprecated
     */
    expirationNotification = "expirationNotification"
}