*/ public function extractConnection(): Promise; /** * @return int Total number of active connections in the pool. */ public function getConnectionCount(): int; /** * @return int Total number of idle connections in the pool. */ public function getIdleConnectionCount(): int; /** * @return int Maximum number of connections this pool will create. */ public function getConnectionLimit(): int; /** * @return int Number of seconds a connection may remain idle before it is automatically closed. */ public function getIdleTimeout(): int; }