def save_file_as(self, file_url, new_file_name, destination_folder=None):
if not destination_folder:<EOL><INDENT>destination_folder = constants.Files.DOWNLOADS_FOLDER<EOL><DEDENT>page_utils._download_file_to(<EOL>file_url, destination_folder, new_file_name)<EOL>
Similar to self.download_file(), except that you get to rename the
            file being downloaded to whatever you want.