pendency properties
result in only a single invocation of <code>fn</code>.</p>
<p><code>wire</code> is added to the prototype of <code>Backbone.Model</code>, so it can be
invoked as <code>model.wire()</code> on any Backbone model.</p>

            </div>
            
            <div class="content"><div class='highlight'><pre><span class="hljs-comment">/* TODO make simple Model API, eliminate Backbone dependency */</span>

<span class="hljs-comment">/* TODO support var callbacks = when().when().when().call