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: spanner_dml_delete_returning.go
    path of file: ./repos/golang-samples/spanner/spanner_snippets/spanner
    
    the code of the file until where you have to start completion: // Copyright 2022 Google LLC
//
// 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
//
//     https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package spanner

// [START spanner_delete_dml_returning]

import (
	"context"
	"fmt"
	"io"

	"cloud.google.com/go/spanner"
	"google.golang.org/api/iterator"
)

func deleteUsingDMLReturning(w io.Writer, db string) error {
	ctx := context.Background()
	client, err := spanner.NewClient(ctx, db)
	if err != nil {
		return err
	}
	defer client.Close()

	// Delete records from SINGERS table satisfying a
	// particular condition and returns the SingerId
	// and FullName column of the deleted records using
	// 'THEN RETURN SingerId, FullName'.
	// It is als
    
func deleteUsingDMLReturning(w io.Writer, db string) error {
	ctx := context.Background()
	client, err := spanner.NewClient(ctx, db)
	if err != nil {
		return err
	}
	defer client.Close()

	// Delete records from SINGERS table satisfying a
	// particular condition and returns the SingerId
	// and FullName column of the deleted records using
	// 'THEN RETURN SingerId, FullName'.
	// It is also possible to return all columns of all the
	// deleted records by using 'THEN RETURN *'.
	_, err = client.ReadWriteTransaction(ctx, func(ctx context.Context, txn *spanner.ReadWriteTransaction) error {
		stmt := spanner.Statement{
			SQL: `DELETE FROM Singers WHERE FirstName = 'Alice'
			        THEN RETURN SingerId, FullName`,
		}
		iter := txn.Query(ctx, stmt)
		defer iter.Stop()
		for {
			row, err := iter.Next()
			if err == iterator.Done {
				break
			}
			if err != nil {
				return err
			}
			var (
				singerID int64
				fullName string
			)
			if err := row.Columns(&singerID, &fullName); err != nil {
				return err
			}
			fmt.Fprintf(w, "%d %s\n", singerID, fullName)
		}
		fmt.Fprintf(w, "%d record(s) deleted.\n", iter.RowCount)
		return nil
	})
	return err
}