Javascript - Clipping support for video-understanding

Hi I want to use the gemini API in javascript for video understanding using youtube video urls. However, I want to use the functionality to clip the videos and only use a portion of it as mentioned here at Set Clipping Intervals. The example is given only for python. I downloaded @google/generative-ai for js but was not able to find similar clipping support for it (I checked the supported types)
I want to verify whether clipping is not supported in js yet?
Thanks!