Stats

compute_log_prior(idata, *[, var_names, ...])	Compute elemwise log_prior of model given InferenceData with posterior group.
compute_log_likelihood(idata, *[, ...])	Compute elemwise log_likelihood of model given InferenceData with posterior group.

PyMC re-exports functions from the arviz_stats library under the pymc.stats namespace, allowing functions like summary, ess, rhat, loo etc. to be accessed as pymc.stats.<function>. For the API documentation of those functions, see the arviz_stats documentation.