&quot;,
                expensive_result.value(intensity)
            );
        }
    }
}
<span class="boring">}</span></code></pre></pre>
<!--
<span class="caption">Listing 13-11: Using `Cacher` in the `generate_workout`
function to abstract away the caching logic</span>
-->
<p><span class="caption">リスト13-11: <code>generate_workout</code>関数内で<code>Cacher</code>を使用し、キャッシュ機構を抽象化する</span></p>
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Instead of saving the closure in a variable directly, we save 