Net core dapper在模型内部插入模型错误:该成员不能用作参数值

using System;
using System.Data.SqlClient;
using Dapper;

public class MyModel
{
    public int Id { get; set; }
    public string Name { get; set; }
}

public class Program
{
    public static void Main()
    {
        string connectionString = "your_connection_string_here";
        using (var connection = new SqlConnection(connectionString))
        {
            connection.Open();

            var model = new MyModel { Name = "John Doe" };

            var sql = "INSERT INTO MyTable (Name) VALUES (@Name); SELECT CAST(SCOPE_IDENTITY AS INT);";
            var result = connection.QueryFirst<int>(sql, model);

            Console.WriteLine($"Inserted ID: {result}");
        }
    }
}