{"ast_node_type":"variable","tokens":[{"end":53,"kind":"keyword","start":0,"text":"let"}]}
                        let expr_ty: Option<Ty<'_>> =
                        let typeck_results = self.infcx.tcx.typeck(self.mir_def_id());
                            visitor.prop_expr.map(|expr| typeck_results.expr_ty(expr).peel_refs());