{"ast_node_type":"other","tokens":[{"end":50,"kind":"keyword","start":0,"text":"predicate_args.iter().find_map(|arg|"}]}
            predicate_args.iter().find_map(|arg| {
        let find_param_matching = |matches: &dyn Fn(ParamTerm) -> bool| {
                arg.walk().find_map(|arg| {