code: public static function create(array $parameters): ?Connection
      {
          $params = [
              'driver' => 'pdo_mysql',
              'host' => $parameters['parameters']['database_host'],
              'port' => $parameters['parameters']['database_port'],
              'user' => $parameters['parameters']['database_user'],
              'password' => $parameters['parameters']['database_password'],
              'dbname' => $parameters['parameters']['database_name'],
          ];
  
          try {
              return DriverManager::getConnection($params);
          } catch (DBALException $e) {
              // ignore
          }
  
          return null;
      }
docs: Returns the database connection object.