{"ast_node_type":"variable","tokens":[{"end":60,"kind":"keyword","start":0,"text":"let"}]}
        let (min, max, size, bias) = match *self.ty.kind() {
    pub fn is_full_range(&self, tcx: TyCtxt<'tcx>) -> Option<bool> {
            ty::Char => (0, std::char::MAX as u128, Size::from_bits(32), 0),