This package is now deprecated, because there is good official alternative exist, please use the official package.
RestSharp.Newtonsoft.Json.Extensions - is an extensions for RestSharp to use Newtonsoft.Json for serialization/deserialization.
IRestRequest request = /* ... */;
request.UseNewtonsoftJsonSerializer();IRestClient сlient = /* ... */;
client.UseNewtonsoftJsonDeserializer();