span class="hljs-attr">"turn-up-to-11"</span>: <span class="hljs-literal">true</span>
        }
      }
    }
  }
  </code></pre>
  </aside>

  <p>In order to maintain interoperability between tools that support this format, teams and tools should restrict their usage of extension data to optional meta-data that is not crucial to understanding that token’s value.</p>
  <p>Tool vendors are encouraged to publicly share specifications of their extension data wherever possible. That way other tools can add su