<PackageReference Include="Newtonsoft.Json" Version="14.0.1-beta1" />

Newtonsoft.Json.Serialization.JsonSerializerInternalReader

class JsonSerializerInternalReader : JsonSerializerInternalBase
public JsonSerializerInternalReader(JsonSerializer serializer)

public object CreateNewObject(JsonReader reader, JsonObjectContract objectContract, JsonProperty containerMember, JsonProperty containerProperty, string id, out bool createdFromNonDefaultCreator)

public object Deserialize(JsonReader reader, Type objectType, bool checkAdditionalContent)

public void Populate(JsonReader reader, object target)