protected function execute(InputInterface $input, OutputInterface $output)
 {
     $io = new DrupalStyle($input, $output);
     $yaml = new Parser();
     $dumper = new Dumper();
     $yaml_file = $input->getArgument('yaml-file');
     $yaml_key = $input->getArgument('yaml-key');
     $yaml_new_key = $input->getArgument('yaml-new-key');
     try {
         $yaml_parsed = $yaml->parse(file_get_contents($yaml_file));
     } catch (\Exception $e) {
         $io->error($this->trans('commands.yaml.merge.messages.error-parsing') . ': ' . $e->getMessage());
         return;
     }
     if (empty($yaml_parsed)) {
         $io->info(sprintf($this->trans('commands.yaml.merge.messages.wrong-parse'), $yaml_file));
     }
     $parents = explode(".", $yaml_key);
     $this->nestedArray->replaceKey($yaml_parsed, $parents, $yaml_new_key);
     try {
         $yaml = $dumper->dump($yaml_parsed, 10);
     } catch (\Exception $e) {
         $io->error($this->trans('commands.yaml.merge.messages.error-generating') . ': ' . $e->getMessage());
         return;
     }
     try {
         file_put_contents($yaml_file, $yaml);
     } catch (\Exception $e) {
         $io->error($this->trans('commands.yaml.merge.messages.error-writing') . ': ' . $e->getMessage());
         return;
     }
     $io->info(sprintf($this->trans('commands.yaml.update.value.messages.updated'), $yaml_file));
 }