<PackageReference Include="Newtonsoft.Json" Version="11.0.2" />

Newtonsoft.Json.Serialization.ResolverContractKey

namespace Newtonsoft.Json.Serialization { internal readonly struct ResolverContractKey : IEquatable<ResolverContractKey> { public ResolverContractKey(Type resolverType, Type contractType); public bool Equals(ResolverContractKey other); } } namespace Newtonsoft.Json.Serialization { public class ErrorEventArgs : EventArgs { public object CurrentObject { get; } public ErrorContext ErrorContext { get; } public ErrorEventArgs(object currentObject, ErrorContext errorContext); } }