import { Event } from '@hebcal/core/dist/esm/event';
import { CalOptions } from '@hebcal/core/dist/esm/CalOptions';
export type ICalEventOptions = {
    dtstamp?: string;
    sequence?: number;
    /**
     * Text for the `DESCRIPTION` property, overriding `ev.memo`. This is
     * per-event, so pass a fresh options object to each `IcalEvent` (for
     * example `new IcalEvent(ev, {...opts, memo})`) rather than setting it on
     * an options object shared by a whole calendar.
     */
    memo?: string;
    emoji?: boolean;
    utmSource?: string;
    utmMedium?: string;
    utmCampaign?: string;
    appendHebrewToSubject?: boolean;
    prodid?: string;
    caldesc?: string;
    title?: string;
    publishedTTL?: string | boolean;
    calendarColor?: string;
    relcalid?: string;
    subscribe?: string | boolean;
    url?: boolean;
};
export type ICalOptions = CalOptions & ICalEventOptions;
/**
 * Represents an RFC 2445 iCalendar VEVENT
 */
export declare class IcalEvent {
    readonly ev: Event;
    readonly options: ICalOptions;
    readonly dtstamp: string;
    readonly sequence?: number;
    readonly timed: boolean;
    readonly locationName: string | null | undefined;
    readonly startDate: string;
    readonly isoDateOnly: string;
    readonly dtargs: string;
    readonly transp: string;
    readonly busyStatus: string;
    readonly endDate: string;
    readonly subj: string;
    readonly category: string | null;
    lines?: string[];
    /**
     * Builds an IcalEvent object from a Hebcal Event
     */
    constructor(ev: Event, options?: ICalOptions);
    getAlarm(): string | null;
    getUid(): string;
    getLongLines(): string[];
    toString(): string;
    /**
     * fold lines to 75 characters
     */
    getLines(): string[];
    /**
     * fold line to 75 characters
     */
    static fold(line: string): string;
    static escape(str: string): string;
    static formatYYYYMMDD(dt: Date): string;
    /**
     * Returns UTC string for iCalendar
     */
    static makeDtstamp(dt: Date): string;
    static version(): string;
}
/**
 * Transforms a single Event into a VEVENT string
 * @returns multi-line result, delimited by \r\n
 */
export declare function eventToIcal(ev: Event, options: ICalOptions): string;
/**
 * Generates an RFC 2445 iCalendar string from an array of events
 */
export declare function eventsToIcalendar(events: Event[], options: ICalOptions): Promise<string>;
/**
 * Generates an RFC 2445 iCalendar string from an array of IcalEvents
 */
export declare function icalEventsToString(icals: IcalEvent[], options: ICalOptions): Promise<string>;