dekiq.html" title="Sidekiq (module)">Sidekiq</a></span></span><span class='op'>::</span><span class='const'><span class='object_link'><a href="Sidekiq/Worker.html" title="Sidekiq::Worker (module)">Worker</a></span></span><span class='rparen'>)</span> <span class='comment'># sidekiq v6.x
</span>  <span class='kw'>return</span> <span class='id identifier rubyid_str'>str</span>                   <span class='kw'>unless</span> <span class='id identifier rubyid_str'>str</span><span class='period'>.</span><span c