code: def multipointm(self, points):
          
          shapeType = MULTIPOINTM
          points = [points] # nest the points inside a list to be compatible with the generic shapeparts method
          self._shapeparts(parts=points, shapeType=shapeType)
docs: Creates a MULTIPOINTM shape.
          Points is a list of xym values.
          If the m (measure) value is not included, it defaults to None (NoData).