title: Difference between attribute and attr_accessor in ActiveAttr gem?
body: <p>I'm trying to use the active_attr gem to create models backed by a NoSQL database that doesn't seem to have any other ORMs or mappers that fit our needs.</p>
  
  <p>In the documentation (<a href="https://github.com/cgriego/active_attr" rel="nofollow">https://github.com/cgriego/active_attr</a>), it shows examples defining attribtues with just <code>attribute</code> and sometimes using <code>attr_accessor</code>. I'm not quite sure I see the difference. Can someone explain when I should use one over the other?</p>