Missing using statement

[mdevol58]

Please check that your issue is not already in the errata aka list of corrections and improvements. Please note that PRs will be ignored because code in the repo must match the print book already published. Please raise an issue instead so I can handle it appropriately. All issues will be entered into the errata once closed and fixed in the next book edition.

Chapter: 11
Page Number: 411
Section Title: Using an ASP.NET Core MVC project as a GraphQL client
Problem to fix: In step 12 you say "... import the namespace for working with text encoding and for our Northwind entity models ..."; however, the using statement for Northwind is missing
Suggested solution: add the following statement - using Northwind.Mvc.GraphQLClient.Models;
Other useful information e.g. OS, coding tools, and so on:

[markjprice]

Thanks! I've added this to the errata: https://github.com/markjprice/apps-services-net7/blob/main/docs/errata/errata.md#page-411---using-an-aspnet-core-mvc-project-as-a-graphql-client