Does internal type property ignored?

I have and internal type property called code in my class to ignore it in JSON serialization in my API.
But this is ignored in insert/update as well by Dapper and the insert query throw error while the select works fine. Is there any setting I can use in Dapper to map internal types?

public class User
{
  public int id {get; set;}
  public string name {get; set;}
  internal string code {get; set;}
}

or any other types like which is mapped in select, insert and update while can be ignored by JSON serialization.

The issue names no repository files or tests. Start by reproducing the shown User class and comparing Dapper.Contrib's select, insert, and update behavior for the internal code property. Done requires a decided mapping behavior and a verified outcome for all three operations.