/**
 * @typedef {Object} TinyPushAction
 * @property {string} action - Identifier echoed back on `notificationclick`.
 * @property {string} title - Human readable label.
 * @property {string} [icon] - Absolute URL of the action icon.
 * @property {string} [url] - URL opened when the action is clicked.
 * @property {boolean} [dismiss] - When `true`, the action only closes the notification.
 */
export type TinyPushAction = {
    /**
     * - Identifier echoed back on `notificationclick`.
     */
    action: string;
    /**
     * - Human readable label.
     */
    title: string;
    /**
     * - Absolute URL of the action icon.
     */
    icon?: string;
    /**
     * - URL opened when the action is clicked.
     */
    url?: string;
    /**
     * - When `true`, the action only closes the notification.
     */
    dismiss?: boolean;
};
export type TinyPushNotification = {
    /**
     * - Notification title.
     */
    title: string;
    /**
     * - Notification body.
     */
    body?: string;
    /**
     * - Absolute URL of the icon.
     */
    icon?: string;
    /**
     * - Absolute URL of the badge.
     */
    badge?: string;
    /**
     * - Absolute URL of the hero image.
     */
    image?: string;
    /**
     * - Collapse key. Notifications with the same tag replace each other.
     */
    tag?: string;
    /**
     * - BCP 47 language tag.
     */
    lang?: string;
    /**
     * - Text direction: `ltr` or `rtl`.
     */
    dir?: string;
    /**
     * - URL opened when the notification body is clicked.
     */
    url?: string;
    /**
     * - Whether to vibrate on replacement.
     */
    renotify?: boolean;
    /**
     * - Whether the notification stays until dismissed.
     */
    requireInteraction?: boolean;
    /**
     * - Whether to suppress vibration and sound.
     */
    silent?: boolean;
    /**
     * - Creation time in milliseconds since the epoch.
     */
    timestamp?: number;
    /**
     * - Vibration pattern in milliseconds.
     */
    vibrate?: number[];
    /**
     * - Action buttons.
     */
    actions?: TinyPushAction[];
    /**
     * - Opaque data echoed back on click.
     */
    data?: Record<string, unknown>;
};
export type TinyPushMessage = {
    /**
     * - Contract version.
     */
    v: number;
    /**
     * - Routing key, see {@link PUSH_TYPE}.
     */
    type: string;
    /**
     * - Idempotency identifier.
     */
    id?: string;
    /**
     * - Time to live in seconds.
     */
    ttl?: number;
    /**
     * - Collapse key at the transport level.
     */
    topic?: string;
    /**
     * - Absolute expiration time in milliseconds since the epoch.
     */
    expiresAt?: number;
    /**
     * - Notification descriptor.
     */
    notification?: TinyPushNotification;
    /**
     * - Arbitrary payload for custom handlers.
     */
    data?: Record<string, unknown>;
};
/**
 * @typedef {Object} TinyPushNotification
 * @property {string} title - Notification title.
 * @property {string} [body] - Notification body.
 * @property {string} [icon] - Absolute URL of the icon.
 * @property {string} [badge] - Absolute URL of the badge.
 * @property {string} [image] - Absolute URL of the hero image.
 * @property {string} [tag] - Collapse key. Notifications with the same tag replace each other.
 * @property {string} [lang] - BCP 47 language tag.
 * @property {string} [dir] - Text direction: `ltr` or `rtl`.
 * @property {string} [url] - URL opened when the notification body is clicked.
 * @property {boolean} [renotify] - Whether to vibrate on replacement.
 * @property {boolean} [requireInteraction] - Whether the notification stays until dismissed.
 * @property {boolean} [silent] - Whether to suppress vibration and sound.
 * @property {number} [timestamp] - Creation time in milliseconds since the epoch.
 * @property {number[]} [vibrate] - Vibration pattern in milliseconds.
 * @property {TinyPushAction[]} [actions] - Action buttons.
 * @property {Record<string, unknown>} [data] - Opaque data echoed back on click.
 */
/**
 * @typedef {Object} TinyPushMessage
 * @property {number} v - Contract version.
 * @property {string} type - Routing key, see {@link PUSH_TYPE}.
 * @property {string} [id] - Idempotency identifier.
 * @property {number} [ttl] - Time to live in seconds.
 * @property {string} [topic] - Collapse key at the transport level.
 * @property {number} [expiresAt] - Absolute expiration time in milliseconds since the epoch.
 * @property {TinyPushNotification} [notification] - Notification descriptor.
 * @property {Record<string, unknown>} [data] - Arbitrary payload for custom handlers.
 */
/**
 * Discriminator used by the router to pick a handler.
 * @readonly
 * @enum {string}
 */
export declare const PUSH_TYPE: Readonly<{
    NOTIFICATION: "notification";
    DATA: "data";
    SYNC: "sync";
    COMMAND: "command";
    UNKNOWN: "unknown";
}>;
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