title: One parameter or many
body: <p>I have two methods:</p>
  
  <pre><code>BuildThing(Thing a);
  BuildThings(IEnumerable&lt;Thing&gt; things);
  </code></pre>
  
  <p>Is this good from a clean code point of view?
  Or is maybe it would be better to just use BuildThings and pass IEnumerable with only one Thing? Or use params?</p>
  
  <p>Thanks.</p>