Using pymc==5.9.1 https://github.com/pymc-devs/pymc-experimental/blob/main/pymc_experimental/gp/latent_approx.py#L130C15-L130C15 raises import error on `pm.gp.util.cholesky` and `pm.gp.util.stabilize` It seems it just needs to be: `cholesky` and `stabilize` since they are imported already correctly in the module.