log_prior_draws(x, ...)# S3 method for stanfit
log_prior_draws(x, joint = FALSE, log_prior_name = "lprior", ...)
# S3 method for CmdStanFit
log_prior_draws(x, joint = FALSE, log_prior_name = "lprior", ...)
# S3 method for draws
log_prior_draws(x, joint = FALSE, log_prior_name = "lprior", ...)