{"ast_node_type":"other","tokens":[{"end":70,"kind":"keyword","start":0,"text":"TyMaybeWithLayout::Ty(field.ty(tcx,"}]}
                            TyMaybeWithLayout::Ty(field.ty(tcx, args))
                            let field = &def.variant(index).fields[FieldIdx::from_usize(i)];
                        }