Where is the projector module? I cannot find the CUDA implementation of the projector (forward Radon Transform)

Dear colleagues,

I need to use quite often the reprojection of the reconstructed slice to retrieve the sinogram, i.e., the Forward Radon Transform. I would really like to use the projector, in addition to the backprojector, in CUDA. With silx + OpenCL, I could do this to be the projector with OpenCL implementation: from silx.opencl.projection import Projection

However, I cannot find this projector in Nabu. Was this not transferred to Nabu? Is there such a CUDA implementation of the projector somewhere? Thank you very much in advance.