code: def _le_slash(self, annot, p1, p2, lr):
          
          m, im, L, R, w, scol, fcol, opacity = self._le_annot_parms(annot, p1, p2)
          rw = 1.1547 * max(1, w) * 1.0         # makes rect diagonal a 30 deg inclination
          M = R if lr else L
          r = Rect(M.x - rw, M.y - 2 * w, M.x + rw, M.y + 2 * w)
          top = r.tl * im
          bot = r.br * im
          ap = "\nq\n%s%f %f m\n" % (opacity, top.x, top.y)
          ap += "%f %f l\n" % (bot.x, bot.y)
          ap += "%g w\n" % w
          ap += scol + "s\nQ\n"
          return ap
docs: Make stream commands for slash line end symbol. "lr" denotes left (False) or right point.