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: examples_test.go
    path of file: ./repos/azure-sdk-for-go/sdk/storage/azfile/service
    
    the code of the file until where you have to start completion: //go:build go1.18
// +build go1.18

// Copyright (c) Microsoft Corporation. All rights reserved.
// Licens
    
func Example_service_Client_ListShares() {
	accountName, ok := os.LookupEnv("AZURE_STORAGE_ACCOUNT_NAME")
	if !ok {
		panic("AZURE_STORAGE_ACCOUNT_NAME could not be found")
	}
	accountKey, ok := os.LookupEnv("AZURE_STORAGE_ACCOUNT_KEY")
	if !ok {
		panic("AZURE_STORAGE_ACCOUNT_KEY could not be found")
	}

	serviceURL := fmt.Sprintf("https://%s.file.core.windows.net/", accountName)

	cred, err := service.NewSharedKeyCredential(accountName, accountKey)
	handleError(err)

	svcClient, err := service.NewClientWithSharedKeyCredential(serviceURL, cred, nil)
	handleError(err)

	pager := svcClient.NewListSharesPager(nil)

	for pager.More() {
		resp, err := pager.NextPage(context.Background())
		handleError(err)
		for _, s := range resp.Shares {
			fmt.Println(*s.Name)
		}
	}
}