code: def shift(self, top=None, right=None, bottom=None, left=None):
          
          ls_shifted = self.to_line_string(closed=False).shift(
              top=top, right=right, bottom=bottom, left=left)
          return self.copy(exterior=ls_shifted.coords)
docs: Shift the polygon from one or more image sides, i.e. move it on the x/y-axis.
  
          Parameters
          ----------
          top : None or int, optional
              Amount of pixels by which to shift the polygon from the top.
  
          right : None or int, optional
              Amount of pixels by which to shift the polygon from the right.
  
          bottom : None or int, optional
              Amount of pixels by which to shift the polygon from the bottom.
  
          left : None or int, optional
              Amount of pixels by which to shift the polygon from the left.
  
          Returns
          -------
          imgaug.Polygon
              Shifted polygon.