{"ast_node_type":"variable","tokens":[{"end":61,"kind":"keyword","start":0,"text":"let"}]}
        let mut consider_impls_for_simplified_type = |simp| {
        let trait_impls = tcx.trait_impls_of(trait_def_id);
            if let Some(impls_for_type) = trait_impls.non_blanket_impls().get(&simp) {