code: func Funcs(codecs runtimeserializer.CodecFactory) []interface{} {
  	return []interface{}{
  		fuzzInitConfiguration,
  		fuzzClusterConfiguration,
  		fuzzComponentConfigs,
  		fuzzDNS,
  		fuzzLocalEtcd,
  		fuzzNetworking,
  		fuzzJoinConfiguration,
  	}
  }
docs: // Funcs returns the fuzzer functions for the kubeadm apis.