SkeletonGenerator.cs

using Microsoft.CodeAnalysis;
using Microsoft.CodeAnalysis.CSharp.Syntax;
using Microsoft.CodeAnalysis.Text;
using System;

namespace DtoGenerators
{
    [Generator]
    public class MappedDtoGenerator : ISourceGenerator
    {
        public void Execute(GeneratorExecutionContext context)
        {
            // this is where I will generate code into the compilation process
        }        

        public void Initialize(GeneratorInitializationContext context) {};
    }    
}