code: def polym(self, polys):
          
          shapeType = POLYGONM
          self._shapeparts(parts=polys, shapeType=shapeType)
docs: Creates a POLYGONM shape.
          Polys is a collection of polygons, each made up of a list of xym values.
          Note that for ordinary polygons the coordinates must run in a clockwise direction.
          If some of the polygons are holes, these must run in a counterclockwise direction.
          If the m (measure) value is not included, it defaults to None (NoData).