## Not run:
# fit <- brm(count ~ log_Age_c + log_Base4_c * Trt_c + (1+Trt_c|visit),
# data = epilepsy, family = "poisson", chains = 1)
# ## extract population and group-level coefficients separately
# fixef(fit)
# ranef(fit)
# ## extract combined coefficients
# coef(fit)
# ## End(Not run)
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