octokit.net/Octokit.Reactive/Clients/IObservableActionsCacheClient.cs

namespace Octokit.Reactive
{
    /// <summary>
    /// A client for GitHub's Actions Cache API.
    /// </summary>
    /// <remarks>
    /// See the <a href="https://developer.github.com/v3/actions/cache/">Actions Cache API documentation</a> for more information.
    /// </remarks>
    public interface IObservableActionsCacheClient
    {
    }
}