{"ast_node_type":"other","tokens":[{"end":60,"kind":"keyword","start":0,"text":"constraints.push(\"~{fcc1}\".to_string());"}]}
                    constraints.push("~{fcc1}".to_string());
                    constraints.push("~{fcc0}".to_string());
                    constraints.push("~{fcc2}".to_string());