{"ast_node_type":"variable","tokens":[{"end":80,"kind":"keyword","start":0,"text":"let"}]}
                    let typck_result = self.infcx.tcx.typeck(self.mir_def_id());
                if let Some(inner) = inner {
                    if let Some(inner_type) = typck_result.node_type_opt(inner.hir_id) {