{"ast_node_type":"variable","tokens":[{"end":63,"kind":"keyword","start":0,"text":"let"}]}
        let b = self.to_uint(cx.data_layout().pointer_size())?;
    pub fn to_target_usize(self, cx: &impl HasDataLayout) -> InterpResult<'tcx, u64> {
        interp_ok(u64::try_from(b).unwrap())