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<pre class="fragment">Gets average CPU utilization of workers across the kubernetes cluster.

Returns:
    float: Average CPU utilization over the past 30 minutes across the cluster.
Returns None if no workers are present.
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<h2 class="memtitle"><span class="permalink"><a href="#a522866340f969d947a19740d0bc956dc">&#9670;&nbsp;</a></span>ec2_get_kube_worker_instances()</h2>

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