How to voxelize a single .pdb file?

[mangalp]

Hello,
It appears that DenseFS is a nice method and useful for the community. But as a beginner to the field, I am unsure if we can process .pdb files with your method. I am struggling to perform a rather simple task. For example, if I have a protein file in .pdb format, how do I voxelize it? Looking at the examples, it seems that the code accepts .gninatype files but it does not explain anywhere how to get such .gninatype files? Provided .pdb files are most common, it would serve the community well if you could please provide a minimalistic (but complete code) example for processing a single .pdb file to generate a Tensor.
Thank you.