code: def shift(self, top=None, right=None, bottom=None, left=None):
          
          lss_new = [ls.shift(top=top, right=right, bottom=bottom, left=left)
                     for ls in self.line_strings]
          return LineStringsOnImage(lss_new, shape=self.shape)
docs: Shift/move the line strings from one or more image sides.
  
          Parameters
          ----------
          top : None or int, optional
              Amount of pixels by which to shift all bounding boxes from the
              top.
  
          right : None or int, optional
              Amount of pixels by which to shift all bounding boxes from the
              right.
  
          bottom : None or int, optional
              Amount of pixels by which to shift all bounding boxes from the
              bottom.
  
          left : None or int, optional
              Amount of pixels by which to shift all bounding boxes from the
              left.
  
          Returns
          -------
          imgaug.augmentables.lines.LineStringsOnImage
              Shifted line strings.