code: def operate_multi(self, points):
          
          points = np.array(points)
          affine_points = np.concatenate(
              [points, np.ones(points.shape[:-1] + (1,))], axis=-1)
          return np.inner(affine_points, self.affine_matrix)[..., :-1]
docs: Apply the operation on a list of points.
  
          Args:
              points: List of Cartesian coordinates
  
          Returns:
              Numpy array of coordinates after operation