/**
 * Enable tracking on sent messages. If not provided, messages are not tracked. You will not be able to react to these messages unless you provide the [options.force](./react#request.body.options.force) field.
 *
 * `ID` - Append an explicit ID at the end of the message for tracking. Users will see this ID. <br>
 *
 * `HIDDEN` - Invisible IDs are sent with messages for tracking. Will not be visible to users but will lead to slightly longer message lengths.
 */
export declare const Tracking: {
    readonly Id: "ID";
    readonly Hidden: "HIDDEN";
};
export type Tracking = (typeof Tracking)[keyof typeof Tracking];