{"ast_node_type":"variable","tokens":[{"end":97,"kind":"keyword","start":0,"text":"let"}]}
            let grandparent = tcx.parent_hir_node(tcx.parent_hir_id(bound.trait_ref.hir_ref_id));
        if let ([], [bound]) = (&potential_assoc_types[..], &trait_bounds) {
            in_expr_or_pat = match grandparent {