getIO example

        $type = $package->getType();
        $frameworkType = $this->findFrameworkType($type);

        if ($frameworkType === false) {
            throw new \InvalidArgumentException(
                'Sorry the package type of this package is not yet supported.'
            );
        }

        $class = 'Composer\\Installers\\' . $this->supportedTypes[$frameworkType];
        $installer = new $class($package, $this->composer, $this->getIO());

        $path = $installer->getInstallPath($package, $frameworkType);
        if (!$this->filesystem->isAbsolutePath($path)) {
            $path = getcwd() . '/' . $path;
        }

        return $path;
    }

    public function uninstall(InstalledRepositoryInterface $repo, PackageInterface $package)
    {
        

EOT
            );

  }

  /** * {@inheritdoc} */
  protected function execute(InputInterface $input, OutputInterface $output): int {
    $handler = new Handler($this->getComposer(), $this->getIO());
    $handler->scaffold();
    return 0;
  }

}