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: default_sa.go
    path of file: ./repos/minikube/pkg/minikube/bootstrapper/bsutil/kverify
    
    the code of the file until where you have to start completion: /*
Copyright 2020 The Kubernetes Authors All rights reserved.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed o
    
func WaitForDefaultSA(cs *kubernetes.Clientset, timeout time.Duration) error {
	klog.Info("waiting for default service account to be created ...")
	start := time.Now()
	saReady := func(ctx context.Context) (bool, error) {
		// equivalent to manual check of 'kubectl --context profile get serviceaccount default'
		sas, err := cs.CoreV1().ServiceAccounts("default").List(ctx, meta.ListOptions{})
		if err != nil {
			klog.Infof("temporary error waiting for default SA: %v", err)
			return false, nil
		}
		for _, sa := range sas.Items {
			if sa.Name == "default" {
				klog.Infof("found service account: %q", sa.Name)
				return true, nil
			}
		}
		return false, nil
	}
	if err := wait.PollUntilContextTimeout(context.Background(), kconst.APICallRetryInterval, timeout, true, saReady); err != nil {
		return errors.Wrapf(err, "waited %s for SA", time.Since(start))
	}

	klog.Infof("duration metric: took %s for default service account to be created ...", time.Since(start))
	return nil
}