<PackageReference Include="NETStandard.Library" Version="2.0.0" />

System.Runtime.Serialization.DataContractSerializerSettings

namespace System.Runtime.Serialization { public class DataContractSerializerSettings { public DataContractResolver DataContractResolver { get; set; } public bool IgnoreExtensionDataObject { get; set; } public IEnumerable<Type> KnownTypes { get; set; } public int MaxItemsInObjectGraph { get; set; } public bool PreserveObjectReferences { get; set; } public XmlDictionaryString RootName { get; set; } public XmlDictionaryString RootNamespace { get; set; } public bool SerializeReadOnlyTypes { get; set; } public DataContractSerializerSettings(); } }