{"ast_node_type":"function","tokens":[{"end":62,"kind":"keyword","start":0,"text":"fn"}]}
    fn filter_landing_pad(&mut self, pers_fn: Self::Function);
    fn cleanup_landing_pad(&mut self, pers_fn: Self::Function) -> (Self::Value, Self::Value);
    fn resume(&mut self, exn0: Self::Value, exn1: Self::Value);