{"ast_node_type":"other","tokens":[{"end":74,"kind":"keyword","start":0,"text":".fill_with_bound_vars(DebruijnIndex::INNERMOST,"}]}
                        .fill_with_bound_vars(DebruijnIndex::INNERMOST, 0)
                    let trait_ref = TyBuilder::trait_ref(db, trait_id)
                        .build();