You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: options.go
    path of file: ./repos/kubeedge/cloud/cmd/admission/app/options
    
    the code of the file until where you have to start completion: /*
Copyright 2019 The KubeEdge Authors.

Licensed under the Apach
    
func (o *AdmissionOptions) Flags() (fss cliflag.NamedFlagSets) {
	fs := fss.FlagSet("admission")
	fs.StringVar(&o.Master, "master", o.Master, "The address of the Kubernetes API server (overrides any value in kubeconfig)")
	fs.StringVar(&o.Kubeconfig, "kubeconfig", o.Kubeconfig, "Path to kubeconfig file with authorization and master location information.")
	fs.StringVar(&o.CertFile, "tls-cert-file", o.CertFile, ""+
		"File containing the default x509 Certificate for HTTPS. (CA cert, if any, concatenated "+"after server cert).")
	fs.StringVar(&o.KeyFile, "tls-private-key-file", o.KeyFile, "File containing the default x509 private key matching --tls-cert-file.")
	fs.StringVar(&o.CaCertFile, "ca-cert-file", o.CaCertFile, "File containing the x509 Certificate for HTTPS.")
	fs.Int32Var(&o.Port, "port", 443, "the port used by admission-controller-server.")
	fs.StringVar(&o.AdmissionServiceNamespace, "webhook-namespace", "kubeedge", "The namespace of this webhook")
	fs.StringVar(&o.AdmissionServiceName, "webhook-service-name", "kubeedge-admission-service", "The name of this admission service")
	return
}