public function execute(InputInterface $input, OutputInterface $output)
 {
     $conf = $this->getGlobalConfig($input->getOption('config'));
     if (!Configuration::envsDir()) {
         throw new ConfigurationException("Path for environments configuration is not set.\n" . "Please specify envs path in your `codeception.yml`\n \n" . "envs: tests/_envs");
     }
     $relativePath = $conf['paths']['envs'];
     $env = $input->getArgument('env');
     $file = "{$env}.yml";
     $path = $this->buildPath($relativePath, $file);
     $saved = $this->save($path . $file, "# `{$env}` environment config goes here");
     if ($saved) {
         $output->writeln("<info>{$env} config was created in {$relativePath}/{$file}</info>");
     } else {
         $output->writeln("<error>File {$relativePath}/{$file} already exists</error>");
     }
 }