code: def compose(self, bbox=None, **kwargs):
          
          from psd_tools.api.composer import compose
          return compose(self, bbox=bbox or self.bbox, **kwargs)
docs: Compose the artboard.
  
          See :py:func:`~psd_tools.compose` for available extra arguments.
  
          :param bbox: Viewport tuple (left, top, right, bottom).
          :return: :py:class:`PIL.Image`, or `None` if there is no pixel.