{"ast_node_type":"variable","tokens":[{"end":61,"kind":"keyword","start":0,"text":"let"}]}
                let place_ty = place.ty(local_decls, tcx).ty;
            Rvalue::Ref(reg, bk, ref place) => {
                Ty::new_ref(tcx, reg, place_ty, bk.to_mutbl_lossy())