Wie deserialisiere ich JSON mit Newtonsoft JSON.NET in ein IEnumerable, wenn BaseType Abstract ist?

<code>[
  {
    "$id": "1",
    "$type": "MyAssembly.ClassA, MyAssembly",
    "Email": "[email\u00a0protected]"
  },
  {
    "$id": "2",
    "$type": "MyAssembly.ClassB, MyAssembly",
    "Email": "[email\u00a0protected]"
  }
]</code>

<code>public abstract class BaseClass
{
    public string Email;
}
public class ClassA : BaseClass
{
}
public class ClassB : BaseClass
{
}</code>

<code>IEnumerable<基类> deserialized;</code>

<code>JsonSerializerSettings settings = new JsonSerializerSettings
{
    TypeNameHandling = TypeNameHandling.All
};

string strJson = JsonConvert.SerializeObject(instance, settings);</code>

<code>{
  "$type": "System.Collections.Generic.List`1[[MyAssembly.BaseClass, MyAssembly]], mscorlib",
  "$values": [
    {
      "$id": "1",
      "$type": "MyAssembly.ClassA, MyAssembly",
      "Email": "[email\u00a0protected]",
    },
    {
      "$id": "2",
      "$type": "MyAssembly.ClassB, MyAssembly",
      "Email": "[email\u00a0protected]",
    }
  ]
}</code>

<code>IEnumerable<BaseClass> obj = JsonConvert.DeserializeObject<IEnumerable<BaseClass>>(strJson, settings);</code>