title: How to declare AoHoAoH?
body: <p>I have this output from <code>Dumper</code></p>
  
  <pre><code>'group' =&gt; {
               '1104' =&gt; {
                           'a' =&gt; 1
                         },
               '52202' =&gt; {
                            'b' =&gt; 1,
                            'c' =&gt; 1
                          },
               '52201' =&gt; {
                            'c' =&gt; 1
                          },
               '52200' =&gt; {
                            'c' =&gt; 1
                          }
             },
  </code></pre>
  
  <p>which I assume is an Array of Hashes of Arrays of Hashes?</p>
  
  <p>I would like to declare this structure my self.</p>
  
  <p>Is there a way to do this, so next time I see such a complex structure, I can do that in no time? =)</p>