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: version.go
    path of file: ./repos/devspace/vendor/k8s.io/kubectl/pkg/cmd/version
    
    the code of the file until where you have to start completion: /*
Copyright 2014 The Kubernetes Authors.

Licensed under the Apache License, Version 2.0 (the "License"
    
func (o *Options) Complete(f cmdutil.Factory, cmd *cobra.Command, args []string) error {
	var err error
	if o.ClientOnly {
		return nil
	}
	o.discoveryClient, err = f.ToDiscoveryClient()
	// if we had an empty rest.Config, continue and just print out client information.
	// if we had an error other than being unable to build a rest.Config, fail.
	if err != nil && !clientcmd.IsEmptyConfig(err) {
		return err
	}

	o.args = args
	return nil
}