export type PrepaidPlanJson = { allowExtendAfterTime?: string; }; export class PrepaidPlan { allowExtendAfterTime?: string; constructor(allowExtendAfterTime?: string) { this.allowExtendAfterTime = allowExtendAfterTime; } static fromJson(json: PrepaidPlanJson): PrepaidPlan { return new PrepaidPlan(json.allowExtendAfterTime); } toJson(): PrepaidPlanJson { return { allowExtendAfterTime: this.allowExtendAfterTime, }; } }