Classes/Console/Command/ExtensionCommandController.php
public function setupCommand(array $extensionKeys)
    {
        $verbose = $this->output->getSymfonyConsoleOutput()->isVerbose();
        $packages = [];
        foreach ($extensionKeys as $extensionKey) {
            $packages[] = $this->packageManager->getPackage($extensionKey);
        }
        $this->setupExtensions($packages, $verbose);
    }
public function setupCommand(array $extensionKeys)
    {
        $verbose = $this->output->getSymfonyConsoleOutput()->isVerbose();
        $packages = [];
        foreach ($extensionKeys as $extensionKey) {
            $packages[] = $this->packageManager->getPackage($extensionKey);
        }
        $this->setupExtensions($packages, $verbose);
    }
Set up extension(s)

Sets up one or more extensions by key.
Set up means:

- Database migrations and additions
- Importing files and data
- Writing default extension configuration

@param array $extensionKeys Extension keys to set up. Separate multiple extension keys with comma.