se-launcher/NuGet/Models/CatalogEntry.cs

using System.Collections.Immutable;
using NuGet.Versioning;

namespace NuGet.Models;

public record CatalogEntry(string Id, NuGetVersion Version, ImmutableArray<DependencyGroup>? DependencyGroups, ImmutableArray<string>? PackageTypes,
    ImmutableArray<CatalogPackageEntry>? PackageEntries);

public record CatalogPackageEntry(string Name, string FullName, long CompressedLength, long Length);