Spotify.NET/SpotifyAPI.Web/RetryHandlers/IRetryHandler.cs

using System;
using System.Threading.Tasks;

namespace SpotifyAPI.Web.Http
{
  /// <summary>
  ///   The Retry Handler will be directly called after the response is retrived and before errors and body are processed.
  /// </summary>
  public interface IRetryHandler
  {
    delegate Task<IResponse> RetryFunc(IRequest request);

    Task<IResponse> HandleRetry(IRequest request, IResponse response, RetryFunc retry);
  }
}