code: def apply_operation_to(self, path):
          
          return path.add_lnTo(
              self._x - self._freeform_builder.shape_offset_x,
              self._y - self._freeform_builder.shape_offset_y
          )
docs: Add `a:lnTo` element to *path* for this line segment.
  
          Returns the `a:lnTo` element newly added to the path.