code: protected function configure()
      {
          if ($this->connectionLocator) {
              $this->bind(ConnectionLocatorInterface::class)->annotatedWith($this->qualifer)->toInstance($this->connectionLocator);
          }
          // ReadOnlyConnection when GET, otherwise WriteConnection
          $this->bind(ExtendedPdoInterface::class)->annotatedWith($this->qualifer)->toProvider(AuraSqlReplicationDbProvider::class, $this->qualifer)->in(Scope::SINGLETON);
          // @ReadOnlyConnection @WriteConnection
          $this->installReadWriteConnection();
          // @Transactional
          $this->install(new TransactionalModule);
      }
docs: {@inheritdoc}