{"ast_node_type":"variable","tokens":[{"end":51,"kind":"keyword","start":0,"text":"let"}]}
                    let mut hash_bytes = [0u8; 16];
                    let hash = self.tcx.type_id_hash(elem_ty).as_u128();
                    write_target_uint(self.data_layout().endian, &mut hash_bytes, hash).unwrap();