<h3>Programs</h3>

<pre><code>
program ::= ?functions ?data ?tdata ?params ?tparams ?model ?generated

functions ::= &#39;functions&#39; function_decls
data ::= &#39;data&#39; var_decls
tdata ::= &#39;transformed data&#39; var_decls_statements
params ::= &#39;parameters&#39; var_decls
tparams ::= &#39;transformed parameters&#39; var_decls_statements
model ::= &#39;model&#39; var_decls_statements
generated ::= &#39;generated quantities&#39; var_decls_statements
function_decls ::= &#39;{&#39; function_decl* &