Algorithm 1 CLUE updating z incrementally

[alishibli97]

I was wondering how the latent variable z in algorithm 1 of the paper is being updated. In the paper line 6 of the algorithm 1, I understand that you update z and then use that updated z in line 3. However, the code here just takes the initial z value at each iteration through the function CLUE.uncertainty_from_z() https://github.com/cambridge-mlg/CLUE/blob/1d7a70df92406ae217db058350e072b516ac948d/interpret/CLUE.py#L104 Can you provide a small clarification on this please? Thanks in advance :)