Pastable version of Recursive Hash#fetch

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            <pre class="sunburst"><span style="color:#E28964;">class</span> <span style="text-decoration:underline;">Hash</span>
  <span style="color:#E28964;">def</span> <span style="color:#89BDFF;">fetch_all</span>(<span style="color:#3E87E3;">key</span>)
    results <span style="color:#E28964;">=</span> []
    hashfinder <span style="color:#E28964;">=</span> lambda {|<span style="color:#3E87E3;">h</span>|
      arrayfinder <span style="color:#E28964;">=</span> lambda {|<span style="color:#3E87E3;">a</span>|
        a.<span style="color:#89BDFF;">each</span> <span style="color:#E28964;">do </span>|<span style="color:#3E87E3;">v</span>|
          hashfinder[v] <span style="color:#E28964;">if</span> v.<span style="color:#89BDFF;">is_a?</span>(<span style="color:#3E87E3;">Hash</span>)
          arrayfinder[v] <span style="color:#E28964;">if</span> v.<span style="color:#89BDFF;">is_a?</span>(<span style="color:#3E87E3;">Array</span>)
        <span style="color:#E28964;">end</span>
      }
      <span style="color:#E28964;">if</span> h.<span style="color:#89BDFF;">has_key?</span>(key)
        results <span style="color:#E28964;">&lt;&lt;</span> h.<span style="color:#89BDFF;">fetch</span>(key)
      <span style="color:#E28964;">end</span>
      h.<span style="color:#89BDFF;">values</span>.<span style="color:#89BDFF;">each</span> <span style="color:#E28964;">do </span>|<span style="color:#3E87E3;">v</span>|
        hashfinder[v] <span style="color:#E28964;">if</span> v.<span style="color:#89BDFF;">is_a?</span>(<span style="color:#3E87E3;">Hash</span>)
        arrayfinder[v] <span style="color:#E28964;">if</span> v.<span style="color:#89BDFF;">is_a?</span>(<span style="color:#3E87E3;">Array</span>)
      <span style="color:#E28964;">end</span>
    }
    hashfinder.<span style="color:#89BDFF;">call</span>(<span style="color:#3E87E3;">self</span>)
    results
  <span style="color:#E28964;">end</span>
<span style="color:#E28964;">end</span>
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