@silverbirder/rminc/dist/user/calendar/calendarAppImpl.d.ts

rMinc is the Google Apps Script Library that register Mail in Calendar

import ICalendarApp from "./iCalendarApp";
import ICalendar from "./iCalendar";
export default class CalendarAppImpl implements ICalendarApp {
    getCalendarByName(name: string): ICalendar;
    createCalendar(name: string): ICalendar;
}