mapping 3D points to 2D points

[TUYaYa1]

hello, I want to mapping 3D points to 2D point. I use this code :
points = np.array([[238, 332, 304],
[614, 357, 298],
[363, 306, 159]])
camera_projection = geo.CameraProjection
points_world = [geo.point(p) for p in points]
points_index = [np.dot(camera_projection.index_from_world, p) for p in points_world]
But, the code reported an error
“raceback (most recent call last):
File "/home/cui/Deepdrr/keypoint.py", line 120, in
points_index = [np.dot(camera_projection.index_from_world, p) for p in points_world]
File "/home/cui/Deepdrr/keypoint.py", line 120, in
points_index = [np.dot(camera_projection.index_from_world, p) for p in points_world]
File "<array_function internals>", line 200, in dot
TypeError: unsupported operand type(s) for *: 'property' and 'float'
”
May I ask how I should solve it？