@shipengine/connect-carrier-api/src/models/manifests/manifest-request-shipment.ts

This is the typescript/javascript definitions for carrier api

import { ShippedShipment } from '../pickup/shipped-shipment';
import { ManifestCustoms } from './manifest-customs';

export class ManifestRequestShipment extends ShippedShipment {
  manifest_request_shipment_id!: string;
  ship_datetime?: string;
  reference?: string;
  customs?: ManifestCustoms;
}