| backend_draws_array | Posterior draws of a fit as an iterations x chains x parameters array |
| backend_extract | Extract named parameters from a fit as a list of arrays |
| backend_generate_quantities | Run generated quantities against a fit and return a parameter matrix |
| backend_has_draws | Does a fit object carry usable posterior draws? |
| fit_model | Fit a Stan model through the chosen backend |
| stan_options | Stan Sampler Options |
| use_flexstanr | Wire flexstanr into a host package |