code: def new_file(self):
          
  
          file = self.get_untitled_file_name()
          LOGGER.debug("> Creating '{0}' file.".format(file))
          self.set_file(file, is_modified=False, is_untitled=True)
          self.__set_document_signals()
          return file
docs: Creates a new editor file.
  
          :return: File name.
          :rtype: unicode