locale_translate_batch_build example

$language = ConfigurableLanguage::createFromLangcode($form_state->getValue('langcode'));
      $language->save();
      $this->messenger()->addStatus($this->t('The language %language has been created.', ['%language' => $this->t($language->label())]));
    }
    $options = array_merge(_locale_translation_default_update_options(), [
      'langcode' => $form_state->getValue('langcode'),
      'overwrite_options' => $form_state->getValue('overwrite_options'),
      'customized' => $form_state->getValue('customized') ? LOCALE_CUSTOMIZED : LOCALE_NOT_CUSTOMIZED,
    ]);
    $this->moduleHandler->loadInclude('locale', 'bulk.inc');
    $file = locale_translate_file_attach_properties($this->file, $options);
    $batch = locale_translate_batch_build([$file->uri => $file], $options);
    batch_set($batch);

    // Create or update all configuration translations for this language.     if ($batch = locale_config_batch_update_components($options, [$form_state->getValue('langcode')])) {
      batch_set($batch);
    }

    $form_state->setRedirect('locale.translate_page');
  }

}