import type { calendar_v3 } from '@googleapis/calendar';
import { type Optional } from '../../lib/optionality.js';
/**
 * Apply attendee email deltas to a REST attendee array: drop the removed
 * addresses, then append the added ones as bare attendees. Addresses compare
 * case-insensitively, and an added address that is already on the list is
 * skipped rather than duplicated.
 */
export declare function applyAttendeeDeltas(attendees: calendar_v3.Schema$EventAttendee[], deltas: {
    added?: Optional<string[]>;
    removed?: Optional<string[]>;
}): calendar_v3.Schema$EventAttendee[];
/**
 * Rewrite the self attendee's invitation response in a REST attendee array:
 * set its `responseStatus` and, when a comment is given, its `comment`,
 * leaving every other attendee untouched. Throws when no attendee carries
 * `self: true`: the authenticated user is not on the guest list, so there is
 * no response of theirs to rewrite.
 */
export declare function respondAsSelf(attendees: calendar_v3.Schema$EventAttendee[], response: {
    responseStatus: 'declined' | 'tentative' | 'accepted';
    comment?: Optional<string>;
}): calendar_v3.Schema$EventAttendee[];
//# sourceMappingURL=attendees.d.ts.map