code: protected function runDown(array $file): void
      {
          $this->notify->note("<comment>Rolling back:</comment> {$file['basename']}");
  
          $this->runMigration($file);
  
          // Once we have successfully run the migration "down" we will remove it from
          // the migration repository so it will be considered to have not been run
          // by the application then will be able to fire by any later operation.
          $this->repository->delete($this->getMigrationName($file));
  
          $this->notify->note("<info>Rolled back:</info>  {$file['basename']}");
      }
docs: Run "down" a migration instance.
  
  @param  array $file
  @return void