title: Instantiating Custom Class from NSDictionary
body: <p>I have a feeling that this is stupid question, but I'll ask anyway...</p>
  
  <p>I have a collection of <code>NSDictionary</code> objects whose key/value pairs correspond to a custom class I've created, call it <code>MyClass</code>. Is there an easy or "best practice" method for me to basically do something like <code>MyClass * instance = [</code>map <code>NSDictionary</code> properties to <code>MyClass</code> <code>];</code>? I have a feeling I need to do something with <code>NSCoding</code> or <code>NSKeyedUnarchiver</code>, but rather than stumble through it on my own, I figure someone out there might be able to point me in the right direction.</p>