mulation in a directed
graphical model (e.g., where you can work down generatively from known
hyperpriors to simulate parameters and data), there is no need to
declare any parameters in Stan, the model block will be empty (and thus
can be omitted), and all output quantities will be produced in the
generated quantities block.</p>
<p>For example, to generate a sequence of <span class="math inline">\(N\)</span> draws from a binomial with
trials <span class="math inline">\(K\)</span> and chance of success <span