Poke around TMDL model directories ("Blah.SemanticModel/definition") [I did it 37 minutes ago]

Program.cs

using Microsoft.AnalysisServices.Tabular;
using System.Diagnostics;

if (args.Length != 1) {
    Console.Error.WriteLine(
      $"Usage: {Process.GetCurrentProcess().ProcessName} tmdl-dir");
    return 2;
}

var db = TmdlSerializer.DeserializeModelFromFolder(args[0]);
Console.WriteLine($"Deserialized {db.Name}");
foreach (var t in db.Tables) {
    Console.WriteLine($"  Table: {t.Name}");
    foreach (var c in t.Columns) {
        Console.WriteLine($"    Column: {c.Name} is {c.Type} {c.DataType}");
    }
    foreach (var p in t.Partitions) {
        Console.WriteLine($"  Partition: {p.Name} from {p.SourceType}");
        Console.WriteLine($"  {p.Source.ToString()}");
        switch (p.Source) {
            case MPartitionSource m:
                Console.WriteLine($"{m.Expression}");
                break;
            default:
                Console.WriteLine("Not an M expression");
                break;
        }
    }
}

return 0;

tmdlerator.csproj

<Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
    <OutputType>Exe</OutputType>
    <TargetFramework>net10.0</TargetFramework>
    <ImplicitUsings>enable</ImplicitUsings>
    <Nullable>enable</Nullable>
  </PropertyGroup>

  <ItemGroup>
    <PackageReference Include="Microsoft.AnalysisServices" Version="19.113.2" />
  </ItemGroup>

</Project>