title: Using puppet hash for epp templates
body: <p>I have next code in erb template:</p>
  
  <pre><code>&lt;% if @proxy_cache_path.is_a?(Hash) -%&gt;
  &lt;% @proxy_cache_path.sort_by{|k,v| k}.each do |key,value| -%&gt;
    proxy_cache_path        &lt;%= key %&gt; keys_zone=&lt;%= value %&gt; levels=&lt;%= @proxy_cache_levels %&gt; max_size=&lt;%= @proxy_cache_max_size %&gt; inactive=&lt;%= @proxy_cache_inactive -%&gt;
  &lt;% end -%&gt;
  </code></pre>
  
  <p>How to porting it for epp template? Im find very low information for it. Please help.</p>