There are docs for [both](http://docs.scipy.org/doc/scipy/reference/generated/scipy.stats.rv_continuous.rvs.html#scipy.stats.rv_continuous.rvs) [kinds](http://docs.scipy.org/doc/scipy/reference/generated/scipy.stats.rv_discrete.rvs.html#scipy.stats.rv_discrete.rvs) of `rvs` method, but I too would like a short description. (No need to get all formal since most users won't have to implement the API themselves.)