.NET API Catalog

net9.0
    namespace Microsoft.EntityFrameworkCore
{
    [JsonConverter(typeof(HierarchyIdJsonConverter))]
    public class HierarchyId : IComparable<HierarchyId!>
    {
        public virtual HierarchyId! GetDescendant(HierarchyId? child1, HierarchyId? child2);
    }
}

Information specific to `net9.0`
.NET	5.06.07.08.09.0
.NET Core	3.03.1
.NET Standard	2.1
Assemblies	Microsoft.EntityFrameworkCore.SqlServer.Abstractions , Version=8.0.4.0, PublicKeyToken=adb9793829ddae60 Microsoft.EntityFrameworkCore.SqlServer.Abstractions , Version=9.0.0.0, PublicKeyToken=adb9793829ddae60
Referencing	Your project needs a package reference to `Microsoft.EntityFrameworkCore.SqlServer.Abstractions`.
Package	Microsoft.EntityFrameworkCore.SqlServer.Abstractions netstandard2.1
Platform Restrictions	This API is supported on all platforms.

Built-in API
Package-provided API