code: def set_progress_message(self, message, line_break=False):
          
  
          end = '\r' if not line_break else None
  
          @self.connect
          def on_progress(value, value_max, **kwargs):
              kwargs['end'] = None if value == value_max else end
              _default_on_progress(message, value, value_max, **kwargs)
docs: Set a progress message.
  
          The string needs to contain `{progress}`.