for _, pc := range p.namespaceToProxyConfigs[namespace] {
		if pc.GetSelector() == nil {
			// return the first match. this is consistent since
			// we sort the resources by creation time beforehand.
			return toMeshConfigProxyConfig(pc)
		}
	}
	return nil
}

// mergedWorkloadConfig merges ProxyConfig resources matching the given namespace and labels.