{"ast_node_type":"variable","tokens":[{"end":70,"kind":"keyword","start":0,"text":"let"}]}
                let (U8 | U16 | U32 | U64 | U128 | Usize): ty::UintTy;
                let (I8 | I16 | I32 | I64 | I128 | Isize): ty::IntTy;
                let possible_integers = [