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: data_source_google_storage_project_service_account.go
    path of file: ./repos/magic-modules/mmv1/third_party/terraform/services/storage
    
    the code of the file until where you have to start completion: package storage

import (
	"fmt"

	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema"
	"github.com/hashicorp/terraform-provider-google/google/tpgresource"
	transport_tpg "github.com/hashicorp/terraform-provider-google/google/transport"
)

func DataSourceGoogleStorageProjectServiceAccount() *schema.Resource {
	return &schema.Resource{
		Read: dataSourceGoogleStorageProjectServiceAccountRead,
		Schema: map[string]*schema.Schema{
    
func dataSourceGoogleStorageProjectServiceAccountRead(d *schema.ResourceData, meta interface{}) error {
	config := meta.(*transport_tpg.Config)
	userAgent, err := tpgresource.GenerateUserAgentString(d, config.UserAgent)
	if err != nil {
		return err
	}

	project, err := tpgresource.GetProject(d, config)
	if err != nil {
		return err
	}

	serviceAccountGetRequest := config.NewStorageClient(userAgent).Projects.ServiceAccount.Get(project)

	if v, ok := d.GetOk("user_project"); ok {
		serviceAccountGetRequest = serviceAccountGetRequest.UserProject(v.(string))
	}

	serviceAccount, err := serviceAccountGetRequest.Do()
	if err != nil {
		return transport_tpg.HandleDataSourceNotFoundError(err, d, "GCS service account not found", fmt.Sprintf("Project %q GCS service account", project))
	}

	if err := d.Set("project", project); err != nil {
		return fmt.Errorf("Error setting project: %s", err)
	}
	if err := d.Set("email_address", serviceAccount.EmailAddress); err != nil {
		return fmt.Errorf("Error setting email_address: %s", err)
	}
	if err := d.Set("member", "serviceAccount:"+serviceAccount.EmailAddress); err != nil {
		return fmt.Errorf("Error setting member: %s", err)
	}

	d.SetId(serviceAccount.EmailAddress)

	return nil
}