{"ast_node_type":"other","tokens":[{"end":96,"kind":"keyword","start":0,"text":"self.generate_structure_code_for_attr(attr).unwrap_or_else(|v|"}]}
            self.generate_structure_code_for_attr(attr).unwrap_or_else(|v| v.to_compile_error())
        let preamble = attrs.iter().map(|attr| {
        });