azure-storage-queue/src/Queue/QueueRestProxy.php
public function setQueueMetadata(
        $queueName,
        array $metadata = null,
        QueueServiceOptions $options = null
    ) {
        $this->setQueueMetadataAsync($queueName, $metadata, $options)->wait();
    }
public function setQueueMetadata(
        $queueName,
        array $metadata = null,
        QueueServiceOptions $options = null
    ) {
        $this->setQueueMetadataAsync($queueName, $metadata, $options)->wait();
    }
Sets user-defined metadata on the queue. To delete queue metadata, call
this API without specifying any metadata in $metadata.

@param string              $queueName The queue name.
@param array               $metadata  The metadata array.
@param QueueServiceOptions $options   The optional parameters.

@return void