title: Discord.net sending direct message(PM) to specified user
body: <p>I'm new here so don't judge me,
  I want to create a command !poke  which sends a direct message(PM) to specified user, but I can't seem to find a way to feed userid to it and documentation is pretty much non existing for discord.net.</p>
  
  <pre><code>        commands.CreateCommand("poke")
              .Parameter("target")
              .Do(async (e) =&gt;
              {
                  ulong userID = e.User.Id;
                  Console.WriteLine("[" + e.Server.Name + "]" + e.User.Name + " just poked " + e.GetArg("target"));
                  await e.User.SendMessage("HEY, wake up! ");
              });
  </code></pre>