func (d *DeleteQuery) Scan(dst ...interface{}) error {
	return d.query.scan(d.result, dst...)
}
Scan will unmarshal the delete query result into the passed interface{},
if nothing is passed, it will be unmarshaled to the individual query models.
package dgman
import (
	"bytes"
	"github.com/dgraph-io/dgo/v210/protos/api"
	"github.com/pkg/errors"
)
type DeleteQuery struct {
	query  *QueryBlock
	result []byte
}