func (t *batchTx) Commit() {
	t.Lock()
	t.commit(false)
	t.Unlock()
}
func (t *batchTx) Commit() {
	t.Lock()
	t.commit(false)
	t.Unlock()
}
func ( t * batchTx ) Commit ( ) { t . Lock ( ) t . commit ( false ) t . Unlock ( ) }
// Commit commits a previous tx and begins a new writable one.
Commit commits a previous tx and begins a new writable one .