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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def ensure_queue_count( self, queued, url, timeout, auth, acs_url, ssl_verify, tags=None, label_tags=None, group=None ):
 """ Ensure `marathon.queue.count` is reported as zero for apps without queued instances. """

        metric_name = '{}.count'.format(self.QUEUE_PREFIX)

        apps_response = self.get_apps_json(url, timeout, auth, acs_url, ssl_verify, tags, group)

        for app in apps_response['apps']:
            if app['id'] not in queued:
                q_tags = self.get_app_tags(app, tags, label_tags)
                self.gauge(metric_name, 0, tags=q_tags)