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<p>An executor keeps a set of internal worker threads to run tasks. A worker view provides users an immutable interface to observe when a worker runs a task, and the view object is only accessible from an observer derived from <a href="classtf_1_1ObserverInterface.html" class="m-doc">tf::<wbr />ObserverInterface</a>.</p>
        <section id="pub-methods">
          <h2><a href="#pub-methods">Public functions</a></h2>
          <dl class=