batch.go
func (wb *WriteBatch) Set(k, v []byte, meta byte) error {
	e := &Entry{Key: k, Value: v, UserMeta: meta}
	return wb.SetEntry(e)
}
func (wb *WriteBatch) Set(k, v []byte, meta byte) error {
	e := &Entry{Key: k, Value: v, UserMeta: meta}
	return wb.SetEntry(e)
}
func ( wb * WriteBatch ) Set ( k , v [ ] byte , meta byte ) error { e := & Entry { Key : k , Value : v , UserMeta : meta } return wb . SetEntry ( e ) }
// Set is equivalent of Txn.SetWithMeta.
Set is equivalent of Txn . SetWithMeta .