{"ast_node_type":"other","tokens":[{"end":21,"kind":"keyword","start":0,"text":"match"}]}
        match param {
    fn ty_infer(&self, param: Option<&ty::GenericParamDef>, span: Span) -> Ty<'tcx> {
            Some(param) => self.var_for_def(span, param).as_type().unwrap(),