* Closes a database connection.
* if it is open : commits any open transactions
*
+ * @throws MWException
* @return Bool operation success. true if already closed.
*/
public function close() {
* generated dynamically using $filename
* @param bool|callable $inputCallback Callback: Optional function called for each complete line sent
* @throws MWException
+ * @throws Exception|MWException
* @return bool|string
*/
public function sourceFile(