## Not run:
# fit <- brm(count ~ log_Age_c + log_Base4_c * Trt_c
# + (1|patient) + (1|visit),
# data = epilepsy, family = "poisson")
# pairs(fit, pars = parnames(fit)[1:3], exact_match = TRUE)
# pairs(fit, pars = "^sd")
# ## End(Not run)
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