title: How do I manually register Mediatr handlers, in ASP.NET Core?
body: <p>I'm using ASP.NET Core, with the built-in container.</p>
  
  <p>Automatic registration is supposed to be done <a href="http://lostechies.com/jimmybogard/2016/07/19/mediatr-extensions-for-microsoft-dependency-injection-released/" rel="noreferrer">like so</a>:</p>
  
  <pre><code>services.AddMvc();
  services.AddMediatR(typeof(Startup));
  </code></pre>
  
  <p>This automatically 1) configures MediatR, and 2) registers all handlers found in the assembly.</p>
  
  <p>But I want to register my handlers manually. How do I do that?</p>