{"ast_node_type":"other","tokens":[{"end":71,"kind":"keyword","start":0,"text":"TyKind::Ref(mutability,"}]}
        TyKind::Ref(mutability, expectation_lt, subty).intern(Interner)
        let subty = self.infer_pat(inner_pat, &expectation_type, default_bm, decl);
    }