Комментарий не полынй и не соответствует методу.

``````ruby
  # Generates markup for fileupload button.
  #
  # text - button caption.
  # url  - url to upload file.
  #
  # Examples:
  #   fileupload_button(Upload a photo, '/photos.js')
  #   <span class="btn fileinput-button btn-success">
  #     Upload a photo
  #     <input data-url="/photos.js" id="fileupload" name="fileupload" type="file">
  #   </span>
  #
  # Returns HTML markup as String.
``````