{"ast_node_type":"variable","tokens":[{"end":77,"kind":"keyword","start":0,"text":"let"}]}
                let size = tag.size(&*self.target_data_layout).bytes_usize();
            Variants::Multiple { tag, tag_encoding, variants, .. } => {
                let offset = layout.fields.offset(0).bytes_usize(); // The only field on enum variants is the tag field