@silverbirder/rminc/dist/user/mailRule/mailRuleMock.d.ts

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

import MailRule, { DateRange } from "./mailRule";
export default class MailRuleMock extends MailRule {
    extractLocation(body: string): string;
    extractDateRange(body: string, baseDate: Date): DateRange;
    extractTitle(body: string): string;
    name: string;
    filteringKeyword: string;
}