{"ast_node_type":"other","tokens":[{"end":84,"kind":"keyword","start":0,"text":"func_let_vars.insert(ident_pat.syntax().text().to_string());"}]}
                        func_let_vars.insert(ident_pat.syntax().text().to_string());
                    if let Some(ident_pat) = ast::IdentPat::cast(node.to_owned()) {
                    }