update mongoose to 5.8.3 (lots of types changes)

db/bill.ts

@@ -2,27 +2,30 @@ import * as mongoose from 'mongoose'
 import { BILL_STATUS, MILAGE_TARIFS } from './enums'
 import { getBillTotal } from '../helpers/bill'
 
-export type AdditionalCost = {
+export interface IAdditionalCost {
   name: string
   value: number
 }
 
-export type Bill = {
+export interface IBill {
   milageStart: number
   milageEnd: number
   milage?: number
   tarif: MILAGE_TARIFS
   status: BILL_STATUS
-  additionalCosts: AdditionalCost[]
+  additionalCosts: IAdditionalCost[]
+
+  createdAt?: string
+  updatedAt?: string
 }
 
-export type BillDocument = Bill &
+export type BillDocument = IBill &
   mongoose.SchemaTimestampsConfig &
   mongoose.Document
 
-export type BillModel = mongoose.Model<BillDocument>
+export type BillModel = mongoose.Model<IBill>
 
-const BillSchema = new mongoose.Schema<BillDocument>(
+const BillSchema = new mongoose.Schema<IBill>(
   {
     milageStart: {
       type: Number,
@@ -88,4 +91,4 @@ BillSchema.virtual('total').get(function (): number {
 })
 
 export default (mongoose.models.Bill ||
-  mongoose.model<BillDocument, BillModel>('Bill', BillSchema)) as BillModel
+  mongoose.model<BillDocument, BillModel>('Bill', BillSchema)) as BillModel