{"ast_node_type":"variable","tokens":[{"end":30,"kind":"keyword","start":0,"text":"let"}]}
                let lit = self
            token::OpenInvisible(InvisibleOrigin::MetaVar(MetaVarKind::Literal)) => {
                    .eat_metavar_seq(MetaVarKind::Literal, |this| this.parse_literal_maybe_minus())