When i can use LeiaSDK.ML?

i use cnsdk to build a app to share these 3d medical image/video for a clinic .
I can share and show sbs file by nas server, but when i try to show sbs video,
i need access to LeiaSDK.ML, but the lastest cnsdk, i always get null from [leiaSDK.ml].
How can i get leiaSDK.ml instance?

some one known about how to use leiaSDK.ml?