nst services = await business.services();
// add a service
const newServiceDesc: BookingService = {booking service details -- see Microsoft Graph documentation};
const newService = services.add(newServiceDesc);
// get service by id
const service = await business.services.getById({service id})();
// update service
const updateServiceDesc: BookingService = {booking service details -- see Microsoft Graph documentation};
const update = await business.services.getById({service id}).update(updateServiceDesc);
// 