{"ast_node_type":"other","tokens":[{"end":89,"kind":"keyword","start":0,"text":"debug_assert!(!value.has_placeholders(),"}]}
        debug_assert!(!value.has_placeholders(), "unexpected placeholders in {value:?}");
        debug_assert!(!value.has_infer(), "unexpected infer in {value:?}");
        let (max_universe, variables) = canonicalizer.finalize();